Deuteronomy 22:3
Do the same with his ass or his robe or anything which has gone from your brother's keeping and which you have come across: do not keep it to yourself.
Treasury of Scripture Knowledge
Summary
In like manner shalt thou do with his ass; and so shalt thou do with his raiment; and with all lost thing of thy brother's, which he hath lost, and thou hast found, shalt thou do likewise: thou mayest not hide thyself.
General references
Bible References
General references
Exodus 23:4
If you come across the ox or the ass of one who is no friend to you wandering from its way, you are to take it back to him