Num Numbers, chapter Book of Numbers, chapter 19
And a man that is clean shall gather up the ashes of the cow, and shall pour them forth without the camp in a most clean place, that they may be reserved for the multitude of the children of Israel, and for a water of aspersion: because the cow was burnt for sin. 1Jn 1:7; Heb 9:13; Num 31:19; Num 31:23; Heb 10:22