Mesilat Yesharim
Many negative commandments refer to theft such as "you shall not steal" (Shemot 20:13, "you shall not rob" Vayikra (19:13), "you shall not oppress" (ibid); "nor deny nor lie one to another" (Vayikra 19:11), "you shall not oppress one another" (Vayikra 25:14), "You shall not push back your neighbor's boundary" (Devarim 19:14). All these are divisions of the laws of theft which apply to many common business transactions and each one includes many prohibitions under it.