Leviticus 15:23-25

New Century Version

²³ It does not matter if the person touched the woman’s bed or something she sat on; he will be unclean until evening.

²⁴ “‘If a man has sexual relations with a woman and her monthly period touches him, he will be unclean for seven days; every bed he lies on will be unclean.

²⁵ “‘If a woman has a loss of blood for many days and it is not during her regular monthly period, or if she continues to have a loss of blood after her regular period, she will be unclean, as she is during her monthly period. She will be unclean for as long as she continues to bleed.