Deuteronomy 22:1

If you see your brother’s ox or sheep straying, you must not ignore it; be sure to return it to your brother.

Note Or you must not hide yourself

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.

You shall not see your brother’s ox or his sheep go astray and hide yourself from them. You shall surely bring them again to your brother.

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