Sahih al-Bukhari 5394
صحيح البخاري#5394Sahihحَدَّثَنَا مُحَمَّدُ بْنُ سَلاَمٍ، أَخْبَرَنَا عَبْدَةُ، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِنَّ الْمُؤْمِنَ يَأْكُلُ فِي مِعًى وَاحِدٍ، وَإِنَّ الْكَافِرَ ـ أَوِ الْمُنَافِقَ فَلاَ أَدْرِي أَيَّهُمَا قَالَ عُبَيْدُ اللَّهِ ـ يَأْكُلُ فِي سَبْعَةِ أَمْعَاءٍ ". وَقَالَ ابْنُ بُكَيْرٍ حَدَّثَنَا مَالِكٌ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم بِمِثْلِهِ.
Narrated Ibn `Umar:Allah's Messenger (ﷺ) said, "A believer eats in one intestine (is satisfied with a little food), and a kafir (unbeliever) or a hypocrite eats in seven intestines (eats too much)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 70:22