Deuteronomy 21:10

7 and they shall answer and say, Our hands have not shed this blood, neither have our eyes seen it.

8 Forgive, Yahweh, your people Israel, whom you have redeemed, and don`t allow innocent blood [to remain] in the midst of your people Israel. The blood shall be forgiven them.

9 So shall you put away the innocent blood from the midst of you, when you shall do that which is right in the eyes of Yahweh.

10 When you go forth to battle against your enemies, and Yahweh your God delivers them into your hands, and you carry them away captive,

11 and see among the captives a beautiful woman, and you have a desire to her, and would take her to you as wife;

12 then you shall bring her home to your house; and she shall shave her head, and pare her nails;

13 and she shall put the clothing of her captivity from off her, and shall remain in your house, and bewail her father and her mother a full month: and after that you shall go in to her, and be her husband, and she shall be your wife.