Numbers 19:5-7

⁵And shall burn her in the sight of all, delivering up to the fire her skin, and her flesh, and her blood, and her dung.

⁶The priest shall also take cedar wood, and hyssop, and scarlet twice dyed, and cast it into the flame, with which the cow is consumed.

⁷And then after washing his garments, and body, he shall enter into the camp, and shall be unclean until the evening.