Deuteronomy 21:13
21:13 discard the clothing she was wearing when captured, and stay in your house, lamenting for her father and mother for a full month. After that you may have sexual relations with her and become her husband and she your wife.
Deuteronomy 22:14
22:14 accusing her of impropriety and defaming her reputation by saying, “I married this woman but when I had sexual relations with her I discovered she was not a virgin!”
Deuteronomy 24:1
24:1 If a man marries a woman and she does not please him because he has found something offensive in her, then he may draw up a divorce document, give it to her, and evict her from his house.