English Translation
Narrated 'Amr bin Umaiyya: that he saw Allah's Apostle 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
This hadith is from Sahih al-Bukhari, the most rigorously authenticated collection in Islamic scholarship. No editorial opinion is added.