Deuteronomy 22:1

You shall not see your brother’s ox or his sheep going astray and ignore them. You shall take them back to your brother .

If you see your fellow Israelite`s ox or sheep straying, do not ignore it but be sure to take it back to its owner.

Thou shalt not see thy brother's ox or his sheep go astray, and hide thyself from them: thou shalt in any case bring them again unto thy brother.