Sahih al-Bukhari 7151
صحيح البخاري#7151Sahihحَدَّثَنَا إِسْحَاقُ بْنُ مَنْصُورٍ، أَخْبَرَنَا حُسَيْنٌ الْجُعْفِيُّ، قَالَ زَائِدَةُ ذَكَرَهُ عَنْ هِشَامٍ، عَنِ الْحَسَنِ، قَالَ أَتَيْنَا مَعْقِلَ بْنَ يَسَارٍ نَعُودُهُ فَدَخَلَ عُبَيْدُ اللَّهِ فَقَالَ لَهُ مَعْقِلٌ أُحَدِّثُكَ حَدِيثًا سَمِعْتُهُ مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالَ " مَا مِنْ وَالٍ يَلِي رَعِيَّةً مِنَ الْمُسْلِمِينَ، فَيَمُوتُ وَهْوَ غَاشٌّ لَهُمْ، إِلاَّ حَرَّمَ اللَّهُ عَلَيْهِ الْجَنَّةَ ".
Narrated Ma'qil:Allah's Messenger (ﷺ) said, "If any ruler having the authority to rule Muslim subjects dies while he is deceiving them, Allah will forbid Paradise for him
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: 93:15