2 Kings 6:22-23

Elisha answered, “You shall not kill them. Would you kill those you have taken captive with your sword and bow? Serve them bread and water, so that they may eat and drink, and go back to their master [King Ben-hadad].” So the king prepared a great feast for them; and when they had eaten and drunk he sent them away, and they went to their master. And the marauding bands of Aram did not come into the land of Israel again.