My father narrated to us. He said: Ahmad b. Idris narrated to us. He said: Ibrahim b. Hashim narrated to us from al-Hasan b. Mahbub. He said: `Ali b. Ri’ab narrated to us. He said: Musa b. Bakr narrated to us from Abi’l Hasan Musa b. Ja`far from his father from his forefathers . He said:

The Messenger of Allah (s) said: Do not take the poor of the Shi`a of `Ali and his progeny after him lightly. Surely, a man from them will intercede for the like of Rabi` and Mudar.