Leviticus 16:3-5

3“In this way Aaron is to enter into the sanctuary – with a young bull for a sin offering and a ram for a burnt offering.

4He must put on a holy linen tunic, linen leggings are to cover his body, and he is to wrap himself with a linen sash and wrap his head with a linen turban. They are holy garments, so he must bathe his body in water and put them on.

5He must also take two male goats from the congregation of the Israelites for a sin offering and one ram for a burnt offering.