Leviticus 15:33
a woman who is in her menstrual period; anyone who has a discharge, whether male or female; and a man who sleeps with an unclean woman.”
Leviticus 15:19
“When a woman has a discharge, and it consists of blood from her body, she will be unclean because of her menstruation
Leviticus 15:24-25
If a man sleeps with her, and blood from her menstruation gets on him, he will be unclean for seven days, and every bed he lies on will become unclean.
Leviticus 20:18
If a man sleeps with a menstruating woman and has sexual intercourse with her, he has exposed the source of her flow, and she has uncovered the source of her blood.