Sahih al-Bukhari 6628
صحيح البخاري#6628Sahihحَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، عَنْ سُفْيَانَ، عَنْ مُوسَى بْنِ عُقْبَةَ، عَنْ سَالِمٍ، عَنِ ابْنِ عُمَرَ، قَالَ كَانَتْ يَمِينُ النَّبِيِّ صلى الله عليه وسلم " لاَ وَمُقَلِّبِ الْقُلُوبِ ".
Narrated Ibn `Umar:The oath of the Prophet (ﷺ) used to be: "No, by Him who turns the hearts
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: 83:8