Hadith 13:6
Narrated Ibn Umar (RA):
The Prophet's oath (ﷺ) used to be: "No, by Him Who turns (changes) the hearts." [Reported by al-Bukhari].
وَعَنْ اِبْنِ عُمَرَ رَضِيَ اَللَّهُ عَنْهُمَا قَالَ: { كَانَتْ يَمِينُ اَلنَّبِيِّ - صلى الله عليه وسلم - "لَا, وَمُقَلِّبِ اَلْقُلُوبِ" } رَوَاهُ اَلْبُخَارِيُّ
Original Reference: Bulugh al-Maram 1379