Arabic Text
حَدَّثَنِي سَعِيدُ بْنُ سُلَيْمَانَ، عَنِ ابْنِ الْمُبَارَكِ، عَنْ مُوسَى بْنِ عُقْبَةَ، عَنْ سَالِمٍ، عَنْ عَبْدِ اللَّهِ، قَالَ أَكْثَرُ مَا كَانَ النَّبِيُّ صلى الله عليه وسلم يَحْلِفُ " لاَ وَمُقَلِّبِ الْقُلُوبِ ".
English Translation
Narrated 'Abdullah: The Prophet frequently used to swear, "No, by the One Who turns the hearts."
This hadith is from Sahih al-Bukhari, the most rigorously authenticated collection in Islamic scholarship. No editorial opinion is added.