Hadithcore
Sahih al-Bukhari, 5414
sahih

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."

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.‏

References2 variants
In-Book Reference
Book 70, Hadith 42
USC-MSA web (English) reference
Vol. 7, Book 65, Hadith 325 (deprecated numbering scheme)