That is because God merges night into day, and He merges day into night, and verily it is God Who hears and sees (all things). (22:61)

adily) pay it back; others, who, if entrusted with a single silver coin, will not repay it unless thou constantly stoodest demanding, because, they say, "there is no call on us (to keep faith) with these ignorant (Pagans)." but they tell a lie against God, and (well) they know it.