So when you met those who were ungrateful, then, strike their thick necks until you gave them a sound thrashing. Then, tie them fast with restraints. And afterwards either have good will towards them or take ransom for them until the war ends, laying down its heavy load. Thus, it is so! But if God willed, He Himself would have, certainly, avenged you. But it is to try some of you with some others. As for those who were slain in the way of God, He will never cause their actions to go astray.