Leviticus 15:15-17

Amplified Bible

¹⁵ and the priest shall offer them, one as a sin offering and the other as a burnt offering. So the priest shall make atonement for the man before the Lord because of his discharge.

¹⁶ ‘Now if any man has a seminal emission, he shall wash all his body in water, and be unclean until evening. ¹⁷ Every garment and every leather on which there is semen shall be washed with water, and shall be unclean until evening.