Deuteronomy 22:23-24

If a man meets a virgin in a city and has sexual relations with her, but she is engaged to another man, you must take both of them to the city gate and put them to death by throwing stones at them. Kill the girl, because she was in a city and did not scream for help. And kill the man for having sexual relations with another man’s wife. You must get rid of the evil among you.