Deuteronomy 21:2-4

Evangelical Heritage Version

² then your elders and your judges are to go out and measure the distance from the person who was killed to each of the surrounding towns.

³ The elders of the city that is closest to the person who was killed are to take a heifer that has not been worked and has not pulled with a yoke. ⁴ The elders of that city are to bring the heifer down to a gully that has a flowing stream and that has not been plowed and sown, and they are to break the neck of the heifer there in the gully.