Sahih al-Bukhari 6617
Book 82: Divine Will (Al-Qadar) · Narrated by `Abdullah
Arabic
حَدَّثَنَا مُحَمَّدُ بْنُ مُقَاتِلٍ أَبُو الْحَسَنِ، أَخْبَرَنَا عَبْدُ اللَّهِ، أَخْبَرَنَا مُوسَى بْنُ عُقْبَةَ، عَنْ سَالِمٍ، عَنْ عَبْدِ اللَّهِ، قَالَ كَثِيرًا مِمَّا كَانَ النَّبِيُّ صلى الله عليه وسلم يَحْلِفُ (لاَ وَمُقَلِّبِ الْقُلُوبِ).
English translation
Narrated `Abdullah:When taking an oath, the Prophet (ﷺ) very often used to say, "No, by Him Who turns the hearts
Reference: Sahih al-Bukhari 6617, Book of Divine Will (Al-Qadar). English translation by Dr. Muhammad Muhsin Khan.