17. The garment or skin which he will have, he shall wash with water, and it shall be unclean until evening.
18. The woman with whom he has had sexual intercourse shall be washed with water, and she shall be unclean until evening.
19. The woman who, at the return of the month, undergoes the flow of blood shall be separated for seven days.
20. All who will touch her shall be unclean until evening.