Defilement: Caused by Touching Carcass of an Unclean Thing
Source: Nav
Leviticus 5:2–13
Or if a person touches anything unclean—whether the carcass of any unclean wild animal or livestock or crawling creature—even if he is unaware of it, he is unclean and guilty. / Or if he touches human uncleanness—anything by which one becomes unclean—even if he is unaware of it, when he realizes it, he is guilty. / Or if someone swears thoughtlessly with his lips to do anything good or evil—in whatever matter a man may rashly pronounce an oath—even if he is unaware of it, when he realizes it, he is guilty in the matter.
Leviticus 11:8, 24–28, 31–38
You must not eat their meat or touch their carcasses; they are unclean for you. / These creatures will make you unclean. Whoever touches their carcasses will be unclean until evening, / and anyone who picks up a carcass must wash his clothes, and he will be unclean until evening. They are unclean for you.
Leviticus 14:46–57
Anyone who enters the house during any of the days that it is closed up will be unclean until evening. / And anyone who sleeps in the house or eats in it must wash his clothes. / If, however, the priest comes and inspects it, and the mildew has not spread after the house has been replastered, he shall pronounce the house clean, because the mildew is gone.
Leviticus 15:5–11
Anyone who touches his bed must wash his clothes and bathe with water, and he will be unclean until evening. / Whoever sits on furniture on which the man with the discharge was sitting must wash his clothes and bathe with water, and he will be unclean until evening. / Whoever touches the body of the man with a discharge must wash his clothes and bathe with water, and he will be unclean until evening.
Deuteronomy 23:10, 11
If any man among you becomes unclean because of a nocturnal emission, he must leave the camp and stay outside. / When evening approaches, he must wash with water, and when the sun sets he may return to the camp.