Deuteronomy 21:4; Deuteronomy 21:6

Deuteronomy 21:4

4 and the elders of that city shall bring the heifer down to a valley with running water, which has not been plowed or sown, and shall break the heifer's neck there in the valley.

Deuteronomy 21:6

6 "All the elders of that city which is nearest to the slain man shall wash their hands over the heifer whose neck was broken in the valley;