Leviticus 15:18-20

New American Standard Bible

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

¹⁹ ‘^(B)When 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. ²⁰ Everything also on which she lies during her menstrual impurity shall be unclean, and everything on which she sits shall be unclean.