(23) باب مَا كَانَ النَّبِيُّ صلى الله عليه وسلم وَأَصْحَابُهُ يَأْكُلُونَ
Narrated Abu Huraira:
that he passed by a group of people in front of whom there was a roasted sheep. They invited him but he refused to eat and said, "Allah's Messenger (ﷺ) left this world without satisfying his hunger even with barley bread."
Reference: Sahih al-Bukhari 5414
In-book reference: Book 70, Hadith 42
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 65, Hadith 325