(43) باب إِذَا دُعِيَ الإِمَامُ إِلَى الصَّلاَةِ وَبِيَدِهِ مَا يَأْكُلُ
Narrated Ja`far bin `Amr bin Umaiya:
My father said, "I saw Allah's Messenger (ﷺ) eating a piece of meat from the shoulder of a sheep and he was called for the prayer. He stood up, put down the knife and prayed but did not perform ablution.''
Reference: Sahih al-Bukhari 675
In-book reference: Book 10, Hadith 69
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 11, Hadith 643