Deuteronomy 22:30 DBY

²⁸  If a man find a damsel, a virgin, who is not betrothed, and lay hold on her, and lie with her, and they be found,

²⁹  then the man that lay with her shall give unto the damsel's father fifty [shekels] of silver, and she shall be his wife, because he hath humbled her; he may not put her away all his days.

³⁰  A man shall not take his father's wife, nor uncover his father's skirt.