Ka`b bin 'Ujra met me and said, "Shall I give you a present? Once the Prophet (ﷺ) came to us and we said, 'O Allah's Messenger (ﷺ) ! 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."

We said, "O Allah's Messenger (ﷺ) 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."