Leviticus 15:25-33

25 "If a woman has a discharge of blood for many days other than her monthly period, she is unclean. If her period lasts longer than usual, she will be unclean as long as she has a discharge. It is like her period.
26 As long as she has a discharge, any bed she lies on or anything she sits on is unclean. It is like her period.
27 Those who touch these things are unclean and must wash their clothes and their bodies. They will be unclean until evening.
28 "When her discharge stops, she must wait seven days. After that, she will be clean.
29 On the eighth day she must take two mourning doves or two pigeons and bring them to the priest at the entrance to the tent of meeting.
30 The priest will offer one as an offering for sin and the other as a burnt offering. So in the LORD's presence the priest will make peace with the LORD for the woman who had an unclean discharge.
31 "You must separate the Israelites from anything that keeps them from being presentable to me. Otherwise, they will die because they make my tent, which is among them, unclean.
32 "These are the instructions for any man who has a discharge or an emission of semen that makes him unclean,
33 for any woman who has her period, for any man or woman who has a discharge, or for any man who has sexual intercourse with a woman when she is unclean."