Sahih al-Bukhari 5733
صحيح البخاري#5733Sahihحَدَّثَنَا أَبُو عَاصِمٍ، عَنْ مَالِكٍ، عَنْ سُمَىٍّ، عَنْ أَبِي صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " الْمَبْطُونُ شَهِيدٌ، وَالْمَطْعُونُ شَهِيدٌ ".
Narrated Abu Huraira:The Prophet (ﷺ) said, "He (a Muslim) who dies of an abdominal disease is a martyr, and he who dies of plague is a martyr
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: 76:48