Leviticus 15:2-13
Speak to the children of Israel, and say to them, When any man has a running issue out of his flesh, because of his issue he is unclean.
Torrey's Topical Textbook—AKJV

Leviticus 17:15
And every soul that eats that which died of itself, or that which was torn with beasts, whether it be one of your own country, or a stranger, he shall both wash his clothes, and bathe himself in water, and be unclean until the even: then shall he be clean.
Torrey's Topical Textbook—AKJV

Leviticus 22:4-7
What man soever of the seed of Aaron is a leper, or has a running issue; he shall not eat of the holy things, until he be clean. And whoever touches any thing that is unclean by the dead, or a man whose seed goes from him;
Torrey's Topical Textbook—AKJV

Numbers 19:7-12,21
Then the priest shall wash his clothes, and he shall bathe his flesh in water, and afterward he shall come into the camp, and the priest shall be unclean until the even.
Torrey's Topical Textbook—AKJV