That he saw Allah's Messenger (ﷺ) cutting a piece of mutton from its shoulder part he was carrying in his hand. When he was called for prayer, he put it down and the knife with which he was cutting it. Then he stood up and offered the prayer without performing new ablution.
Reference: Sahih al-Bukhari 5462 In-book : Book 70, Hadith 91 USC-MSA web (English) : Vol. 7, Book 65, Hadith 372 (deprecated)
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