Deuteronomy 22:2

And if thy brother, the member of the Israelitish nation, be not nigh unto thee, if he does not live in the immediate neighborhood, or if thou know him not, then thou shalt bring it, the lost animal, unto thine own house, and it shall be with thee until thy brother seek after it, and thou shalt restore it to him again. During this time it was to be guarded most carefully, in the most secure place of the house.