Leviticus 15:18-28

18If a man sleeps with a woman so that there is a seminal emission, they shall both bathe in water and be 1unclean until evening.

19‘2When a woman has a discharge, if her discharge in her body is blood, she shall continue in her menstrual impurity for seven days; and whoever touches her shall be unclean until evening. 20Everything also on which she lies during her menstrual impurity shall be unclean, and everything on which she sits shall be unclean. 21Anyone who touches her bed shall wash his clothes and bathe in water and be unclean until evening. 22Whoever touches any object on which she sits shall wash his clothes and bathe in water and be unclean until evening. 23Whether it be on the bed or on the thing on which she is sitting, when he touches it, he shall be unclean until evening. 243If a man actually sleeps with her so that her menstrual impurity is on him, he shall be unclean seven days, and every bed on which he lies shall be unclean.

25‘4Now if a woman has a discharge of her blood for many days, not at the period of her menstrual impurity, or if she has a discharge beyond 5that period, for all the days of her impure discharge she shall continue as though 6in her menstrual impurity; she is unclean. 26Any bed on which she lies all the days of her discharge shall be to her like 7her bed at menstruation; and every object on which she sits shall be unclean, like 8her uncleanness at that time. 27Likewise, whoever touches them shall be unclean, and shall wash his clothes and bathe in water and be unclean until evening. 28When she becomes clean from her discharge, she shall count off for herself seven days; and afterward she will be clean.