Leviticus 15:28-31

28“When her discharge stops, she must wait seven days. After that, she will be clean.

29On 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.

30The 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.