Sahih al-Bukhari
Sahih al-Bukhari 6617
"... (Allah) comes in between a person and his heart"
Arabic hadith text
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).
Translation
Narrated `Abdullah
When taking an oath, the Prophet (ﷺ) very often used to say, "No, by Him Who turns the hearts."