كتاب النذور والأيمان
22  
Vows and Oaths

Yahya related to me from Malik that he had heard that the Messenger of Allah, may Allah bless him and grant him peace, used tosay, "No, by the Overturner of hearts."

وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يَقُولُ ‏ "‏ لاَ وَمُقَلِّبِ الْقُلُوبِ ‏"‏ ‏.‏
USC-MSA web (English) reference : Book 22, Hadith 15
Arabic reference : Book 22, Hadith 1028