Leviticus 20 14
If there is a man who marries a woman and her mother, it is an outrageous sin; both he and they shall be burned with fire, so that there will be no such outrageous sin in your midst.
If there is a man who marries a woman and her mother, it is an outrageous sin; both he and they shall be burned with fire, so that there will be no such outrageous sin in your midst.