Qur'ān 13:20 · Ar-Ra'd (الرعد)

ٱلَّذِينَ يُوفُونَ بِعَهْدِ ٱللَّهِ وَلَا يَنقُضُونَ ٱلْمِيثَـٰقَ

Those who fulfill the covenant of Allah and do not break the contract,