Sahih al-Bukhari 6010
صحيح البخاري#6010SahihNarrated Abu Huraira:Allah's Messenger (ﷺ) stood up for the prayer and we too stood up along with him. Then a bedouin shouted while offering prayer. "O Allah! Bestow Your Mercy on me and Muhammad only and do not bestow it on anybody else along with us." When the Prophet (ﷺ) had finished his prayer with Taslim, he said to the Bedouin, "You have limited (narrowed) a very vast (thing)," meaning Allah's Mercy
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: 78:41