One who swears falsely becomes poor within forty nights

Hazrat Imam Ja'far as-Sadiq (a.s.) says,
"One who swears falsely becomes poor within forty nights" (means forty days). 
(Al Kafi)

Many traditions of similar connotations are available. The same Imam (a.s.) has also said:
"The false oath that takes one to the fire is the one which is taken to usurp the right of a Muslim or to usurp his property."

And Imam Ja'far as-Sadiq (a.s.) also remarks,
"When a person says, "Allah knows!" when in fact he is speaking a lie; then Allah tells him, 'Didn't you find anyone other than Me to ascribe the falsehood to?'
(Al Kafi)

The Holy Imam (a.s.) also says: 
"When a person says 'Allah knows' and the fact is that Allah knows contrary (to what he alludes), the heavens shudder due to the Might and Divine anger."

Types of oaths

An oath is taken to prove some fact or report, or to relate the same with emphasis. There are four kinds of oaths:
1. Wajib (Obligatory). 
2. Mustahab (Recommended).
3. Makrooh (Detestable).
4. Haraam (Prohibited).

When does it become wajib (obligatory) to swear?

It is wajib to take an oath in a situation where one's life or honour, or that of another Muslim, is in danger, and taking the oath can ward off the danger. When it is wajib to protect ones property it is also wajib to take an oath for its protection. In fact in all the above situations it is wajib even to take a false oath, although as a precautionary measure one should first try ones best to employ Toriya.

Mustahab oath

There are situations where it is Mustahab to take an oath or to refrain from doing so. In case of very insignificant property belonging to oneself or to another Muslim it is not wajib to swear. In this case it will be Mustahab to do so. Property that is usually considered insignificant is worth thirty Dirhams or less.

Zurara asked Imam Muhammad al-Baqir (a.s.): "The oppressive rulers forcefully collect taxes from us. Can we swear falsely that we have nothing to give tax on when it is not possible to save our money without swearing falsely?"

Imam (a.s.) said,
"Take such oaths! Such oaths are more sweet than dates and butter." 
(Wasaelush Shia)

However if the property is not worth much, especially if its value is less than thirty Dirhams, then it is Mustahab not to swear falsely, even if it may be necessary to save oneself from the oppressor.

Hazrat Imam Ja'far as-Sadiq (a.s.) has quoted the following tradition from the Holy Prophet (s.a.w.s.):
"Respecting the Greatness of Allah if one refrains from swearing, Allah shall give him much better than whatever he has lost."
(Furu Al Kafi)

Imam Ja'far as-Sadiq (a.s.) says:
"If there is claim against you regarding some property and the claimant does not have any right upon you, and desires to make you take an oath, then if the claim is for something worth less than thirty Dirhams, hand it over to him and do not take an oath. But if it is worth more than thirty Dirhams, take the oath and do not give him anything." 
(Furu Al Kafi)

The Holy Prophet (s.a.w.s.) says:
"If a person takes his debtor (or one who owes him something) to the court of the ruler; and the king asks him to swear; and knowing that he is on the right he respects the Greatness of Allah and refrains from swearing, then on the Day of Qiyamat Allah shall not desire for him a position less than that of Hazrat Ibrahim (a.s.)."

Imam Sajjad (a.s.) avoids swearing

In the book Al Kafi there is a tradition, which says that a wife of Imam Sajjad (a.s.) had some connection with the tribe of Bani Hanifa. A Shia of Imam (a.s.) informed him that this wife of his bore enmity to Amirul Momineen (a.s.). After investigating the matter Imam (a.s.) divorced her. She had already received the Meher amount (Dower), but she filed a claim for it against Imam (a.s.) in the court of the ruler of Madinah. She demanded four hundred Dirhams as Meher from him. The ruler of Madinah told Imam Sajjad (a.s.), "Either you swear that you have already paid her or you pay the amount of Meher (now)." Hazrat Syed-e-Sajjad (a.s.) did not swear, but ordered his son Hazrat Muhammad al-Baqir (a.s.) to pay four hundred Dirhams to the woman. Hazrat Baqir (a.s.) said, "May I be sacrificed for you! Are you not on the right?"

Imam (a.s.) replied,
"Why not? But I consider Allah to be much more honourable than this matter, that I swear by His name for some petty worldly property."

Swearing for the sake of emphasis

Not only it is permitted but it is mustahab to swear in order to emphasize on a true fact, or to prove some fact, or to show its importance. For example the Holy Prophet (s.a.w.s.) speaks after taking the oath: 
"By Allah! Allah does not delay in forgiving, Though you may be lazy in seeking it." 
(Masaalik)

Another example of an oath is the following saying of Amirul Momineen (a.s.): 
"By Allah! If people knew what I know then very few would have laughed and many more would have wept." 
(Masaalik)

There are numerous Quranic verses and the traditions of Masoomeen (a.s.) where oath is taken. All of them are of this same type. They are for emphasis and for proving particular facts.

A person wrote a letter to Imam Muhammad Baqir (a.s.) and asked about something which was being wrongly attributed to him (Imam a.s).

Imam Baqir (a.s.) wrote the following reply, 
"By Allah! What is being attributed is not correct. But under no circumstance do I like to say "By Allah" to disprove it. Yet I regret that such a thing is being said when it really isn't so." 
(Mustadrakul Wasael)

Swearing is Makrooh

We have already described the wajib and Mustahab oaths. Apart from these, in all other situations, it is Makrooh (detestable) to swear. It is irrelevant whether the oath is for something past, present or future. In ordinary situations, for ordinary matters, taking an oath is Makrooh. Swearing for a false thing is certainly Haraam. It is the command of Imam Ja'far as-Sadiq (a.s.):
"Do not swear by the name of Allah, whether you are speaking the truth or lying." 
(Furu Al Kafi)

"Because Allah says in the Holy Quran,
"And make not Allah because of your swearing (by Him) an obstacle to your doing good...""
(Surah Baqarah 2:224)

Hazrat Imam Ja'far as-Sadiq (a.s.) also says, 
"One who swears falsely by Allah for a lie has disbelieved, and one who swear by Allah for truth has sinned, because Allah says: "Do not use Allah for (taking of) your oaths." 
(Furu Al Kafi)

The above quoted traditions could be simply explained thus: 
To swear falsely in the name of Allah is definitely a greater sin and one who indulges in a greater sin, falls down from the highest position of Faith. Due to this some amount of disbelief comes to his heart. Imam (a.s.) has also called a true oath a sin and he has used the word "Ithm" (sin). Since it is prominent among the Mujtahids that a true oath is Makrooh the word "Ithm" would imply something which is very very undesirable.

A Lesson from Hazrat Isa (a.s.)

The book Furu Al Kafi also contains the following report from Imam Ja'far as-Sadiq (a.s.):
"The apostles of Hazrat Isa (a.s.) came to him and said, "O the teacher of good, give us some advice."

He (a.s.) said, "Certainly, Musa, the Prophet of Allah commanded you not to swear falsely by Allah. And I order you not to swear falsely and (nor) truly." 
(Furu Al Kafi)

Oath of respectable objects and personalities

Wherever it is permitted to swear by Allah, it is also permitted to swear by other honorable personalities or respectable objects. In such situations it is allowed to take an oath by the Quran, the Ka'ba, the Prophet (s.a.w.s.) or the Imam (a.s.). In the same way oath upon any other respectable object is also permissible. For example a person may swear by his father or son etc.

Those traditions that prohibit swearing by Allah's name prohibit it for proving ones right. They do not prohibit the proving of a true fact by oath. However when a situation arises where it becomes obligatory to take an oath, then one must swear only by Allah. Oath by any other object or personality will not be absolutely correct and from the Shariat point of view the matter will not end conclusively. Similarly if one has to take an oath for performing a particular action in the future, in this case too, one must swear only by Allah. Any other vow does not have any legal standing.

The oath that is haraam under all circumstances

The oath which is Haraam under all circmstances and which one can never take is that of dissociating with Allah and His religion. For example a man says;
"If I do not perform this particular action, I shall be dissociated with Allah and His religion." Such an oath is certainly Haraam.

In the same way if one says: 
"If I do not do this, I would have disbelieved in the Holy Prophet (s.a.w.s.), or I would have rejected the Mastership of Ali (a.s.), or I would become a disbeliever." Such a vow is also Haraam. It is Haraam whether one wishes to prove the truth or to lay emphasis upon a fact.

The Holy Prophet (s.a.w.s.) heard a person taking such an oath. He (s.a.w.s.) said, "Woe be unto you, if you leave the religion of Muhammad (s.a.w.s.) then which religion would you follow?"

The narrator says that the Holy Prophet (s.a.w.s.) did not speak to this man till the end of his life. 
(Al Kafi)

Imam Ja'far as-Sadiq (a.s.) informed Yunus Ibne Zabyan: 
"O Yunus! Do not speak about dissociating from us in an oath. One who takes oath from it, whether for a true thing or a falsehood, he really becomes dissociated from us." 
(Al Kafi)

Expiation for a haraam oath

The expiation for an oath which is haraam, (the oath which states dissociation with divine personalities), according to a group of Mujtahids is equal to expiation of Zihar (when one vows to abstain from one's wife, sexually). Another group of Mujtahids has prescribed its expiation to be equal to that of breaking a vow and it is the same as the penalty of breaking or not keeping a Wajib fast of Ramazan. 
(Refer Shariyatul Islam)

However, Shaykh Mufeed (r.a.) says that expiation of vow of dissociation is to feed to satiation, ten poor people and also to repent. The same decree is proved from a letter of Imam Hasan al-Askari (a.s.), which is quoted in the book Masaalik.

Imam (a.s.) says, 
"He shall feed ten poor people with a 'Madd' (approximately ¾ of a kilo) of food and seek forgiveness from Allah."

In this penalty, the following edibles can be given: wheat, wheat flour, barley, rice or any other cooked food.

Since the chain of narrators for this tradition is authentic, one must act upon it as a precautionary measure.

Imam Ja'far as-Sadiq (a.s.) and Mansur Dawaniqi

A man came to the Abbaside king Mansur Dawaniqi and began to instigate him against Imam Ja'far as-Sadiq (a.s.). He said, "He desires to launch an attack upon you. He has sent money to different places for this and continues to do so. He has always supported the sons of Abdullah Ibne Hasan, Muhammad and Ibrahim, and these two have confronted you."

Mansur summoned Imam Ja'far as-Sadiq (a.s.) from Madinah. When Imam (a.s.) reached the court of Mansur, he quoted the false allegations and severely criticised the Imam (a.s.).

Imam (a.s.) replied, 
"I seek the refuge of Allah from such things. All these are false allegations."

Mansur called the man who had laid these false allegations against Imam (a.s.). The accused man came and repeated his accusations. Imam as-Sadiq (a.s.) asked him, 
"Can you swear for the truth of your statements?"

This accused person began to say, "By Allah! The one besides whom there is no god, He is the..."

Imam (a.s.) interrupted him, 
"Do not make haste in taking the oath, say as I command you."

Mansur asked, "Is there any defect in the oath which he has taken?"

Imam replied, 
"When a man swears by Allah, praising the Divine qualities, Allah refrains from sending an immediate retribution. So he should say like this, 'I swear by Allah ignoring His Might and Power and seek the refuge on my own might and power that whatever I have said is the truth.'"

Mansur ordered that man to swear in this manner. The man began to take the oath and had not even completed it when his tongue rolled out like a dog and he fell down dead.

Is it against a prohibited oath?

Someone may think that this narration mentions the prohibited form of oath. It is not so. Muhaqqiqe-Qummi says that in the first place the chain of narrators of this tradition is weak. Secondly it may be that ordering such an oath may be the sole prerogative of an Imam. The Imam (a.s.) knew that the one taking such an oath is not a believer. He was an enemy of Ahlul Bayt (a.s.) and it was necessary to resort to such means in order to clear himself of the false allegations. 
(Jame ush-shataat)

From the explanation of this tradition by Muhaqqiq it is clear that Imam (a.s.) considered that accursed man deserving of death and his death only depended upon the oath of dissociation. It was also necessary that Imam (a.s.) was not disrespected and that the Imam (a.s.) could save himself from being unjustly persecuted at the hands of Mansur. Another benefit that accrued was that, Mansur for the time being, refrained from oppressing the other Sadaat (descendants of Holy Prophet) and believers.

Repenting for a false oath

The method of repenting for a false oath is that one must feel extremely remorseful for it. He should know that he has considered the Divine name of Allah to be a plaything, and that he has committed a grave sin. The more remorse one feels and the more serious he considers his sin, the closer he shall be to Allah's Divine Mercy and Forgiveness. If due to this false oath some monetary loss has occurred to a believer or a believer has been insulted, then the one who had taken the false oath must compensate for the monetary loss and apologise to the believer, and as far as possible try to make up for the harm that has been caused due to his false swearing.

When is the vow correct?

There are some requirements for the correctness of a vow that a person takes for performing or avoiding particular actions in the future. If all the requirements are fulfilled then it is haraam to break this vow. If it is broken, expiation becomes wajib.

The following are the conditions for such vows:
1. The vow should be with regard to a wajib or a Mustahab act. For example, he can vow that he shall not intentionally avoid the Morning Prayer, he will make it a point to say Namaz-e-Shab. In the same way if one vows to abstain from a particular act, this act has to be either haraam or Makrooh in nature. For example he can vow that he shall not speak a lie in future or he can vow to refrain from spitting in the mosque. A vow to refrain from a Mubah (permitted) act or thing should only be taken when there is some benefit in it. For example it is Mubah to smoke. So one can take a vow in order to give up this habit.

2. Vows with regard to all the five types of actions, i.e. Wajib, Mustahab, Haraam, Makrooh and Mubah are valid only when the name of Allah is uttered with a firm intention to do or to refrain from a particular thing. One must not swear by Allah in jest. If one is in a habit of saying, "By Allah I shall do this." or "By Allah I shall not do it" then unless he seriously means it, such a vow is not considered valid.

The Quran says: 
"Allah does not call you to account for what is vain in your oaths, but he calls you to account for the making of deliberate oaths; so its expiation is feeding of ten poor men out of the middling (food) you feed your families with, or their clothing, or the freeing of a neck; but whosoever cannot find (means) then fasting for three days; this is the expiation of your oaths when you swear; and guard your oaths. Thus does Allah make clear to you His communications, that you may be grateful.
(Surah Maidah 5:89)