Sahih al-Bukhari 4869
صحيح البخاري#4869Sahihحَدَّثَنَا حَفْصُ بْنُ عُمَرَ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، عَنِ الأَسْوَدِ، عَنْ عَبْدِ اللَّهِ، قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم يَقْرَأُ {فَهَلْ مِنْ مُدَّكِرٍ}
Narrated `Abdullah bin Masud:The Prophet (ﷺ) used to recite: "Fahal-min-Maddakir (then is there any that will receive admonition?)
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: 65:390