Numbers 19:17-19

Young's Literal Translation

¹⁷ and they have taken for the unclean person of the ashes of the burning of the [cleansing], and he hath put upon it running water unto a vessel;

¹⁸ and a clean person hath taken hyssop, and hath dipped [it] in water, and hath sprinkled on the tent, and on all the vessels, and on the persons who have been there, and on him who is coming against a bone, or against one pierced, or against the dead, or against a grave.

¹⁹ `And the clean hath sprinkled [it] on the unclean on the third day, and on the seventh day, and hath cleansed him on the seventh day, and he hath washed his garments, and hath bathed with water, and hath been clean in the evening.