Leviticus 15:25-26

25‘1Now if a woman has a discharge of her blood many days, not at the period of her menstrual impurity, or if she has a discharge beyond 2that period, all the days of her impure discharge she shall continue as though 3in her menstrual impurity; she is unclean.

26Any bed on which she lies all the days of her discharge shall be to her like 4her bed at menstruation; and every thing on which she sits shall be unclean, like 5her uncleanness at that time.