Leviticus 15:25-27 NIV

25 " 'When a woman has a discharge of blood for many days at a time other than her monthly period1 or has a discharge that continues beyond her period, she will be unclean as long as she has the discharge, just as in the days of her period.

References for Leviticus 15:25

26 Any bed she lies on while her discharge continues will be unclean, as is her bed during her monthly period, and anything she sits on will be unclean, as during her period.
27 Whoever touches them will be unclean; he must wash his clothes and bathe with water, and he will be unclean till evening.