Lev Leviticus, chapter Book of Leviticus, chapter 20
And if an ish lie with his kallah (daughter-in-law), both of them shall surely be put to death; they have committed tevel (perversion); their dahm shall be upon them.
And if an ish lie with his kallah (daughter-in-law), both of them shall surely be put to death; they have committed tevel (perversion); their dahm shall be upon them.