Halakhah su Levitico 19:13

That is that He commanded us to return the stolen item itself, if it is still remaining as itself - with the addition of a fifth if he swore [about it] - or to give its value, if it was transformed. And that is His, may He be exalted, saying, "and he shall return the stolen item" (Leviticus 5:3). And they already explained in Tractate Makkot (Makkot 16a) that the negative commandment of robbery is a negative commandment that is rectified by a positive commandment. And they said [about this] that Scripture said, "you shall not rob" (Leviticus 19:13), "and he shall return the stolen item." And the regulations of this commandment have already been explained in Bava Kamma. (See Parashat Vayikra; Mishneh Torah, Robbery and Lost Property 1.)

To not oppress: To not hold on to that which is in our hand of someone else's by way of force or delay or deception - like delinquents who delay people, saying, "Go and return," so as to cause that what is in their hand of someone else's to remain with them. And this is an extremely bad trait, and [so] our perfect Torah distanced us from it and warned us about it in this place, as it is written (Leviticus 19:13), "You shall not oppress your neighbor" - as one who holds the money of someone else in this manner that we said is called an oppressor. And also included in oppression is anyone who is liable specific money to his fellow and he oppresses him, such as one who suppresses the wage of a wage worker and similar to it. As we do not require that the money actually come from the hand of the oppressed to the hand of the oppressor; but rather anyone that has a claim of specific money against him and he delays it as a result of his violence or any angle of deception is called an oppressor. And even though oppression, robbery and theft are one matter even if the act of one is different from the another, as the intention of the three of them is that a man not take that which is someone else's in any way; since people pilfer each other in these three ways, Scripture specified all of them and warned about each one on its own. And similar to this is what they, may their memory be blessed, said in Metzia (Bava Metzia 111a), "Rava said, 'This is oppression, this is [also] robbery. And [so] why did Scripture divide them [and specify each one]? To [have one who commits it] transgress two negative commandments.'"

To not rob: To not rob - meaning to say, to not take with strength and force and publicity that to which we do not have a right, as it is stated (Leviticus 19:13), "and you shall not rob." And the explanation came about it (Bava Kamma 79b), that the expression, "robbery (gezelah)" relates to one that grabs something from the hand of his fellow or takes it out of his domain against his will by way of force and in the open, like the matter that is stated (II Samuel 23:21), "and he robbed the spear from the hand of the Egyptian."