My father and Muhammad b. al-Hasan narrated to us. They said: Sa`d b. `Abdullah narrated to us from Ahmad b. Muhammad b. Khalid. He said: Abu'l Qasim `Abd al-Rahman al-Kufi and Abu Yusuf Ya`qub al-Anbari the scribe narrated to us from Abi Muhammad `Abdullah b. Muhammad al-Ghifari from al-Husayn b. Zayd from al-Sadiq Ja`far b. Muhammad from his father from his forefathers . He said:

The Messenger of Allah (s) said: Whoever loves us, the Ahl al-Bayt, should praise Allah for the first of blessings. It was said: What is the first of blessings? He said: A pure birth. None loves us except he whose birth is pure.