Sahih al-Bukhari 5414
Sahih al-Bukhari · Book 70: Food, Meals · What the Prophet (saws) and his Companions used to eat.
Narrated Abu Huraira:
حَدَّثَنِي إِسْحَاقُ بْنُ إِبْرَاهِيمَ ، أَخْبَرَنَا رَوْحُ بْنُ عُبَادَةَ ، حَدَّثَنَا ابْنُ أَبِي ذِئْبٍ ، عَنْ سَعِيدٍ الْمَقْبُرِيِّ ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ أَنَّهُ مَرَّ بِقَوْمٍ بَيْنَ أَيْدِيهِمْ شَاةٌ مَصْلِيَّةٌ، فَدَعَوْهُ فَأَبَى أَنْ يَأْكُلَ قَالَ خَرَجَ رَسُولُ اللَّهِ صلى الله عليه وسلم مِنَ الدُّنْيَا وَلَمْ يَشْبَعْ مِنَ الْخُبْزِ الشَّعِيرِ.
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."