That Allah may give them the best reward of what they have done, and give them more out of His grace; and Allah gives sustenance to whom He pleases without measure.

And (as for) those who disbelieve, their deeds are like the mirage in a desert, which the thirsty man deems to be water; until when he comes to it he finds it to be naught, and there he finds Allah, so He pays back to him his reckoning in full; and Allah is quick in reckoning;