Surah Al-Fath Verse 10 - English Translation by N J Dawood
Surah Al-Fathإِنَّ ٱلَّذِينَ يُبَايِعُونَكَ إِنَّمَا يُبَايِعُونَ ٱللَّهَ يَدُ ٱللَّهِ فَوۡقَ أَيۡدِيهِمۡۚ فَمَن نَّكَثَ فَإِنَّمَا يَنكُثُ عَلَىٰ نَفۡسِهِۦۖ وَمَنۡ أَوۡفَىٰ بِمَا عَٰهَدَ عَلَيۡهُ ٱللَّهَ فَسَيُؤۡتِيهِ أَجۡرًا عَظِيمٗا
Those that swear fealty to you, swear fealty to God Himself. The Hand of God is above their hands. He that breaks his oath breaks it at his own peril, but he that keeps his pledge to God shall be richly recompensed by Him