Narrated `Abdur-Rahman bin Abi Laila:

Ka`b bin 'Ujra met me and said, "Shall I give you a present? Once the Prophet (s.a.w.a.) came to us and we said, 'O Allah's Messenger (s.a.w.a.) ! We know how to greet you; but how to send 'Salat' upon you? He said, 'Say: Allahumma Salli ala Muhammadin wa 'ala `Ali Muhammadin, kama sal-laita 'ala all Ibrahima innaka Hamidun Majid. Allahumma barik 'ala Muhammadin wa 'ala all Muhammadin, kama barakta 'ala all Ibrahima, innaka Hamidun Majid."

Narrated Abu Sa`id Al-Khudri:

We said, "O Allah's Messenger (s.a.w.a.) This is (i.e. we know) the greeting to you; will you tell us how to send Salat on you?" He said, "Say: 'Allahumma Salli 'ala Muhammadin `Abdika wa rasulika kama sal-laita 'ala Ibrahima wa barik 'ala Muhammadin wa all Muhammadin kama barakta 'ala Ibrahima wa `Ali Ibrahim."

Abdullah b. Zaid-he who was shown the call (for prayer in a dream) narrated it on the authority of Abu Mas'ud al-Ansari who said:

We were sitting in the company of Sa'id b. 'Ubida when the Messenger of Allah (s.a.w.a.) came to us. Bashir b. S'ad said: Allah has commanded us to bless you. Messenger of Allah! But how should we bless you? He (the narrator) said: The Messenger of Allah (s.a.w.a.) kept quiet (and we were so much perturbed over his silence) that we wished we had not asked him. The Messenger of Allah (s.a.w.a.) then said: (For blessing me) say:" O Allah, bless Muhammad and the members of his household as Thou didst bless the mernbers of Ibrahim's household. Grant favours to Muhammad and the members of his household as Thou didst grant favours to the members of the household of Ibrahim in the worlds. Thou art indeed Praiseworthy and Glorious" ; and salutation as you know.

Ibn Abi Laila reported:

Ka'b b. 'Ujra met me and said: Should I not offer you a present (and added): The Messenger of Allah (s.a.w.a.) came to us and we said: We have learnt how to invoke peace upon you; (kindly tell us) how we should bless you. He (the Holy Prophet (s.a.w.a.)) said: Say:" O Allah: bless Muhammad (s) and his family as Thou didst bless the family of Ibrahim. Verily Thou art Praiseworthy and Glorious, O Allah."

A hadith like this has been narrated by Mis'ar on the authority of al-Hakam, but in the hadith transmitted by Mis'ar these words are not found:

" Should I not offer you a present?"

A hadith like this has been narrated by al-Hakam except that he said:

" Bless Muhammad (s)" and he did not say:" O Allah!