The Book of Drinks (Kitab Al-Ashriba)
Muslim :: Book 23 : Hadith 5064
Anas b. Malik reported: Abu Talha saw Allah's Messenger (may peace be upon him) lying down upon his belly in the mosque. He came to Umm Sulaim and said: I saw Allah's Messenger (may peace be upon him) lying down upon the belly in the mosque, and I think he is hungry. The rest of the hadith is the same (but with the addition of these words) that Allah's messenger (may peace be upon him) ate (the food) and so did Abu Talha, Umm Sulaim and Anas b. Malik, but there was left some. thing which we presented to our neighbours.