Leviticus 6:10

6:10 Then the priest must put on his linen robe and must put linen leggings over his bare flesh, and he must take up the fatty ashes of the burnt offering that the fire consumed on the altar, and he must place them beside the altar.

Leviticus 20:18

20:18 If a man has sexual intercourse with a menstruating woman and uncovers her nakedness, he has laid bare her fountain of blood and she has exposed the fountain of her blood, so both of them must be cut off from the midst of their people.