Numbers 19:17 in the King James Version
And for an unclean person they shall take of the ashes of the burnt heifer of purification for sin, and running water shall be put thereto in a vessel:
Context
16 “Whoever in the open field touches one who is slain with a sword, or a dead body, or a bone of a man, or a grave, shall be unclean seven days.
17 “For the unclean, they shall take of the ashes of the burning of the sin offering; and running water shall be poured on them in a vessel.
18 A clean person shall take hyssop, dip it in the water, and sprinkle it on the tent, on all the vessels, on the persons who were there, and on him who touched the bone, or the slain, or the dead, or the grave.