Deuteronomy 22:2

And even if thy brother is not kin unto thee, or if thou know him not, then thou shalt bring it unto thine own house, and it shall be with thee until thy brother seeks after it, and thou shalt restore it to him again.

Matthew 7:12

Therefore, all things whatsoever ye desire that men should do unto you, so also shall ye do unto them, for this is the law and the prophets.

1 Thessalonians 4:6

that no one oppress and defraud his brother in any matter because the Lord is the avenger of all such, as we also have forewarned you and testified.

Treasury of Scripture Knowledge

Summary

And if thy brother be not nigh unto thee, or if thou know him not, then thou shalt bring it unto thine own house, and it shall be with thee until thy brother seek after it, and thou shalt restore it to him again.

Thou shalt restore

General references

Bible References

Thou shalt restore

Matthew 7:12
Therefore, all things whatsoever ye desire that men should do unto you, so also shall ye do unto them, for this is the law and the prophets.
1 Thessalonians 4:6
that no one oppress and defraud his brother in any matter because the Lord is the avenger of all such, as we also have forewarned you and testified.

General references

Exodus 23:4
If thou should encounter thine enemy's ox or his ass astray, thou shalt surely bring it back to him again.