The Uqooq of Spiritual Fathers

The Uqooq of the spiritual fathers means to disobey their commands and to be heedless of their orders. To sever relationships with them in this world by not acknowledging their leadership. Imam Reza (a.s.) asked, 
"Won't you feel bad if your parents are displeased and say that you are not their child?"

Those who were present answered, "Yes". Imam (a.s.) continued, 
"The spiritual parents are superior to your biological parents. Do not give them an opportunity to say this. Rather consider yourself lucky be to their son or daughter."

Breaking up relations

The seventh Greater Sin is the breaking up of relations with one's kith and kin. This is clearly verified by Imam Ja'far as-Sadiq (a.s.) as well as Imam Musa al-Kazim (a.s.), Imam Ali ar-Reza (a.s.) and Imam Muhammad al-Taqi (a.s.). The Quran has also decreed Hell-fire and the curse of Allah upon those who cut off ties with their relatives.

Imam Ja'far as-Sadiq (a.s.) says:
"Beware of those who cut off relations because I have found them cursed thrice in the Quran."

1) Surah Baqarah, Ayat No.27
Whoever break the covenant of Allah after its confirmation and cut asunder what Allah has ordered to be joined, and make mischief in the land, these it is that are the losers.

In the Quranic terminology when the word Khaasir (loser) is used it denotes the one who is to be in loss, or rather the one who is cursed.

2) Surah Raad, Ayat No.25
And those who break the covenant of Allah after its confirmation and cut asunder which Allah has ordered to be joined and make mischief in the land; (as for) those, upon them shall be curse and they shall have the evil (issue) of the abode.

3) Surah Muhammad, Ayat No.22-23
But if you held command, you were sure to make mischief in the land and cut off the ties of kinship. Those it is whom Allah has cursed, so He has made them deaf and blinded their eyes.

The Denouncement of "Cutting Off Kinship Ties" in the Traditions

Numerous traditions have reached us in this regard. A few of these reports are quoted here:
The Holy Prophet (s.a.w.s.) states:
There is destruction in enmity, especially with the relatives. I do not mean the destruction of the law but rather the destruction of the religion. (Enmity among people not only harms the hair and the body, but it also destroys one's religion).
(Al Kafi, Chapter of Qate-Rahem)

Imam Ja'far as-Sadiq (a.s.) says:
"Protect yourself from 'Haliqa' for it destroys the people." The narrator asked "What is 'Haliqa'", Imam replied, "To sever relations."