إِنَّ ٱلَّذِينَ يُبَايِعُونَكَ إِنَّمَا يُبَايِعُونَ ٱللَّهَ يَدُ ٱللَّهِ فَوْقَ أَيْدِيهِمْ ۚ فَمَن نَّكَثَ فَإِنَّمَا يَنكُثُ عَلَىٰ نَفْسِهِۦ ۖ وَمَنْ أَوْفَىٰ بِمَا عَـٰهَدَ عَلَيْهُ ٱللَّهَ فَسَيُؤْتِيهِ أَجْرًا عَظِيمًا
Innal lazeena yubaayi'oonaka innamaa yubaayi'oonal laaha yadul laahi fawqa aydehim; faman nakasa fainnamaa yuankusu 'alaa nafsihee wa man awfaa bimaa 'aahada 'alihul laaha fasa yu'teehi ajran 'azeemaa
Those who pledge allegiance to you are in truth pledging allegiance to God — the hand of God is over their hands. Whoever breaks the pledge breaks it only against himself, and whoever fulfills what he has covenanted with God, to him he will grant a great reward.