DEUT1104 If he named the lost object, but not its [Identifying] signs, it should not be returned to him. And if he is [known as] a deceiver, even if he does give its signs, it is not to be returned to him, it being written: "until you seek out your brother" -- until you seek out your brother to determine whether or not he is a deceiver (Bava Metzia 28b)
SHOW FULL EXCERPT