Deuteronomy 21:11-13

Living Bible

¹¹ and you see among the captives a beautiful girl you want as your wife, ¹² take her home with you. She must shave her head and pare her nails ¹³ and change her clothing, laying aside that which she was wearing when she was captured, then remain in your home in mourning for her father and mother for a full month. After that you may marry her.