And do not approach the property of the orphan except in the best manner until he attains his maturity, and give full measure and weight with justice-- We do not impose on any soul a duty except to the extent of its ability; and when you speak, then be just though it be (against) a relative, and fulfill Allah's covenant; this He has enjoined you with that you may be mindful;

So Musa returned to his people wrathful, sorrowing. Said he: O my people! did not your Lord promise you a goodly promise: did then the time seem long to you, or did you wish that displeasure from your Lord should be due to you, so that you broke (your) promise to me?