Parallel
Leviticus 20:18
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
And if a man shall lie with a woman having her sickness, and shall uncover her nakedness; he hath discovered (note: Heb. made naked) her fountain, and she hath uncovered the fountain of her blood: and both of them shall be cut off from among their people.
If a man lies with a menstruating woman and has sexual relations with her, he has exposed the source of her flow, and she has uncovered the source of her blood. Both of them must be cut off from among their people.