Leviticus 11:27

11:27 All that walk on their paws among all the creatures that walk on all fours are unclean to you. Anyone who touches their carcass will be unclean until the evening,

Leviticus 15:19

Female Bodily Discharges

15:19 “‘When a woman has a discharge and her discharge is blood from her body, she is to be in her menstruation seven days, and anyone who touches her will be unclean until evening.

Leviticus 24:3

24:3 Outside the veil-canopy of the congregation in the Meeting Tent Aaron must arrange it from evening until morning before the Lord continually. This is a perpetual statute throughout your generations.