Exodus 21:7-9

7“If a man sells his daughter to be a female servant, she shall not go free [after six years] as male servants do.

8If she does not please her master who has chosen her for himself [as a wife], he shall let her be redeemed [by her family]. He does not have the authority to sell her to a foreign people, because he has been unfair to her.

9If her master chooses her [as a wife] for his son, he shall act toward her as if she were legally his daughter.