Leviticus 15:19
“And if a woman have an issue, and her issue in her flesh be blood, she shall be put apart seven days: and whosoever toucheth her shall be unclean until the even.”
And every garment, and every skin, whereon is the seed of copulation, shall be washed with water, and be unclean until the even.
The woman also with whom man shall lie with seed of copulation, they shall both bathe themselves in water, and be unclean until the even.
And if a woman have an issue, and her issue in her flesh be blood, she shall be put apart seven days: and whosoever toucheth her shall be unclean until the even.
And every thing that she lieth upon in her separation shall be unclean: every thing also that she sitteth upon shall be unclean.
And whosoever toucheth her bed shall wash his clothes, and bathe himself in water, and be unclean until the even.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Related Verses
“And he that toucheth the flesh of him that hath the issue shall wash his clothes, and bathe himself in water, and be unclean until the even.”
“And if it be on her bed, or on any thing whereon she sitteth, when he toucheth it, he shall be unclean until the even.”
“Also thou shalt not approach unto a woman to uncover her nakedness, as long as she is put apart for her uncleanness.”
“And if a woman have an issue of her blood many days out of the time of her separation, or if it run beyond the time of her separation; all the days of the issue of her uncleanness shall be as the days of her separation: she shall be unclean.”
“Every bed whereon she lieth all the days of her issue shall be unto her as the bed of her separation: and whatsoever she sitteth upon shall be unclean, as the uncleanness of her separation.”