In a tradition mentioned by at-Tabari, ath-Tha’labi, al-Wahidi, al-Qurtubi Abu as-Sa’ood, al-Fakhr ar-Razi, ibn Katheer ash-Shami, an-Nayshaboori, as-Sayooti and al-Aaloosi in their tafsirs; and in the books of al-Balathari, ibn Qutayba, ibn Zoulaq, ibn Asakir, ibnul Atheer, ibn Abul Hadeed, ibn Khillikan, ibn Hajar and ibn as-Sabbagh; in the books of Hadith by ash-Shafi’iy, Ahmad bin Hanbal, ibn Maja, at-Tarmithi, an-Nassa’iy, ad-Doulabi, Muhibuddeen at-Tabari, ath-Thahabi, al-Muttaqi al-Hindi, ibn Hamza ad-Damashqi, and Tajuddeen al-Mannawi, and books of theology[1] by Judge Abu Bakr al-Baqillani, Judge Abdurrahman al-Ayji, Sayyid Shareef al-Jurjani, al-Baydhawi, Shamsuddeen al-Isfahani, at-Taftazani and al-Qoushaji that the Prophet (s), in order to guide people, to keep the Religion and follow the Qur'an and to lead people to happiness in this life and the afterlife, appointed, in the Valley of Ghadeer Khum on the 18th of Thul Hijja[2], an Imam (s) over the Muslims. He would be an Infallible Leader who was free from defects in thinking, belief, morals and deeds. He was Ameerul Mo'mineen[3] Ali bin Abu Talib (s). The Prophet (s) had made him the Caliph, the Wali and the leader over the Umma after him. For that, Allah announced the perfection of the Religion, completing the favor, and choosing Islam as the religion and law for people until the Day of Resurrection.
“This day have I perfected for you your religion and completed My favor on you and chosen for you Islam as a religion.” Qur’an 5:3
Accepting the guardianship and the rule of Imam Ali (s) and obeying him in the affairs of religion, life and the afterlife is perfection of the Religion and completion of the favor of Allah.
Concerning cleanliness, purity and the luminous state coming out of wudu[4], it was narrated from Imam ar-Redha (s):
“Wudu’ has been ordered to be as prerequisite so that man should be pure when standing before Allah the Almighty supplicating Him and following His orders. He should be pure of every impurity; besides that, wudu’ gets laziness and drowsiness away and it purifies the heart to be ready before the Almighty.”[5]
These are the moral effects of ghusl[6] and tayammum[7] where all of them come under the title of “Purity.” It is the purity that belongs to the circle of the Divine Orders. This state occurs for whomever performs wudu’, ghusl or tayammum and then offers prayer and worship. The Holy Qur'an says that the favor (blessing) of Allah has been perfected and completed on that one.
At the end, the verse of purity and prayer reads:
“…Allah does not desire to put on you any difficulty, but He wishes to purify you and that He may complete His favor on you, so that you may be grateful.” Qur’an 5:6
It is understood from this verse that completing the favor on man is realized by being interested in moral matters, following the Divine orders and being endowed with true beliefs and good manners.
[1] Refer to al-Ghadeer by Allama al-Ameeni, vol.1 p.6-8.
[2] Thul Hijja is the twelfth month in the Islamic calendar.
[3] Ameerul Mo'mineen means the commander of the believers.
[4] Wudu’ is ritual ablution that is required before offering certain rites.
[5] Wassa’il ash-Shia, vol.1 p.257.
[6] Ghusl is obligatory bathing that is required after certain acts or occurrences.
[7] Tayammum is ritual purification with sand, soil, or dust, allowed when water is unavailable.
source : REPENTANCE THE CRADLE OF MERCY By Husayn Ansariyan