Surah Ar-Ra'd, Verse 20

ٱلَّذِينَ يُوفُونَ بِعَهۡدِ ٱللَّهِ وَلَا يَنقُضُونَ ٱلۡمِيثَٰقَ٢٠

alladhīna yūfūna biʿahdi l-lahi walā yanquḍūna l-mīthāqa

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