Sahih al-Bukhari 4797
صحيح البخاري#4797SahihNarrated Ka`b bin Ujra:It was said, "O Allah's Messenger (ﷺ)! We know how to greet you, but how to invoke Allah for you?" The Prophet said, "Say: Allahumma salli ala Muhammadin wa'ala `Ali Muhammaddin, kama sallaita 'ala all Ibrahim, innaka Hamidun Majid
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 65:319