Sahih al-Bukhari 5408
صحيح البخاري#5408SahihNarrated `Amr bin Umaiyya:that he saw the Prophet (ﷺ) holding a shoulder piece of mutton in his hand and cutting part of it with a knife. Then he was called for the prayer whereupon he put down the shoulder piece and the knife with which he was cutting it, and then stood for prayer without performing ablution again
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: 70:36