If you do good, you will do good for your own souls, and if you do evil, it shall be for them. So when the second promise came (We raised another people) that they may bring you to grief and that they may enter the mosque as they entered it the first time, and that they might destroy whatever they gained ascendancy over with utter destruction.

What! he who is obedient during hours of the night, prostrating himself and standing, takes care of the hereafter and hopes for the mercy of his Lord! Say: Are those who know and those who do not know alike? Only the men of understanding are mindful.