Numbers 19:9

And a clean man shall gather up the ashes of the heifer, and lay them up in a clean place outside the camp; and they shall be for the congregation of the children of Israel to keep: it is the water of sprinkling, a purification.

And a man that is clean shall gather up the ashes of the heifer, and lay them up without the camp in a clean place, and it shall be kept for the congregation of the children of Israel for a water of separation: it is a purification for sin.

“A man who is clean shall gather up the ashes of the heifer, and lay them up outside of the camp in a clean place; and it shall be kept for the congregation of the children of Israel for use in water for cleansing impurity. It is a sin offering.