Deuteronomy 22:3
In the same way you shall do with his ass. And so shall you do with his clothing. And with any lost thing of your brother's, which he has lost and you have found, you shall do the same. You may not hide 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 meet your enemy's ox or his ass going astray, you shall surely bring it back to him again.