Sayyidina Ka’b ibn Ujrah (RA) reported having submitted to the Prophet , “0 Messenger of Allah! This salaam (greeting) to you, we know it, but how do we invocate blessing on you?” He said, Say:
0 Allah! bless Muhammad and the family of Muhammad, as You did bless Ibrahim. Indeed You are Praiseworthy, Glorious. And show favour to Muhammad and the family of Muhammad as You did show favour to Ibrahim. Indeed, You are Praiseworthy, Glorious.
Abu Usamah said “We added the words (and on us with him).”