Deuteronomy 21:2-4 ▼

2 Then your elders and your judges shall come forth, and they shall measure the distance to the cities which are round about him that is slain;

3 And the elders of the city which is nearest to the slain man shall take a heifer which has never been used for work nor has pulled in the yoke,

4 And the elders of that city shall bring down the heifer to a barren valley which has never been ploughed nor sown, and shall slaughter the heifer there in the valley;