And fulfill the covenant of Allāh when you have taken it, [O believers], and do not break oaths after their confirmation while you have made Allāh, over you, a security [i.e., witness]. Indeed, Allāh knows what you do.
Fulfil every pledge that you made to Allah or that you made to people. Do not break oaths after making them binding by swearing by Allah, when you have made Allah a witness to the oath that you swore. Allah knows what you do. Nothing is hidden from Him and He will recompense you for that.