Menstruation: Law Relating To

When a woman has a discharge consisting of blood from her body, she will be unclean due to her menstruation for seven days, and anyone who touches her will be unclean until evening. …

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.

He does not eat at the mountain or look to the idols of the house of Israel. He does not defile his neighbor’s wife or approach a woman during her period.