2 Samuel 3:22-23

22Then the servants of David came with Joab from a raid and brought a great quantity of spoil with them; but Abner was not with David at Hebron, because David had sent him away, and he had gone in peace.

23When Joab and all the army that was with him arrived, they told Joab, “Abner the son of Ner came to the king, and he has sent him away, and he has gone in peace.”