Muhammad b. Musa b. al-Mutawakkil (ra) narrated to us. He said: Muhammad b. Yahya al-`Attar narrated to us from Muhammad b. Ahmad b. Yahya b. `Imran al-Ash`ari from Muhammad b. `Isa b. `Ubayd from Sulayman b. Rashid from his father from Mu`awiya b. `Ammar. He said
I mentioned one of the prophets in the presence of Abi `Abdillah al-Sadiq (as), and I blessed him, so he said: When one of the prophets is mentioned, then begin with blessing Muhammad, then him. (May the blessings of Allah be upon Muhammad and his Family, and upon all the prophets)