2 Samuel 3:22-23

22And behold, 1the servants of David and Joab came from a raid and brought a large amount of plunder with them; but Abner was not with David in Hebron, since he had let him go, and he had gone in peace.

23When Joab and all the army that was with him arrived, they informed Joab, saying, “Abner the son of Ner came to the king, and he has let him go on his way, and he has gone in peace.”