Volume 4, Book 55, Number 589:
Narrated Abdur-Rahman bin Abi Laila:
Ka’b bin Ujrah met me and said, “Shall I not give you a present I got from the Prophet?” ‘Abdur-
Rahman said, “Yes, give it to me.” I said, “We asked Allah’s Apostle saying, ‘O Allah’s Apostle! How
should one (ask Allah to) send blessings on you, the members of the family, for Allah has taught us
how to salute you (in the prayer)?’ He said, ‘Say: O Allah! Send Your Mercy on Muhammad and on
the family of Muhammad, as You sent Your Mercy on Abraham and on the family of Abraham, for
You are the Most Praise-worthy, the Most Glorious. O Allah! Send Your Blessings on Muhammad
and the family of Muhammad, as You sent your Blessings on Abraham and on the family of Abra –
ham, for You are the Most Praise-worthy, the Most Glorious.’ “