Sunan Abi Dawud 3263
سنن أبي داود#3263Sahihحَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ النُّفَيْلِيُّ، حَدَّثَنَا ابْنُ الْمُبَارَكِ، عَنْ مُوسَى بْنِ عُقْبَةَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ : أَكْثَرُ مَا كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَحْلِفُ بِهَذِهِ الْيَمِينِ : " لاَ، وَمُقَلِّبِ الْقُلُوبِ " .
Narrated Ibn 'Umar:The oath which the Messenger of Allah (ﷺ) often used was this: No, by Him who overturns 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:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih Bukhari (6617)
In-book reference: 22:22