Numbers 19:17
For the purification of the unclean person, take some of the ashes of the burnt sin offering, put them in a jar, and pour fresh water over them.
Berean Standard Bible
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:
“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.