And if a man beats his male or female servant with a rod, so that he dies under his hand, he shall surely be punished. Notwithstanding, if he remains alive a day or two, he shall not be punished; for he is his property. — Exodus 21:20-21, NKJV
(If a man beats his slave to death, that man shall surely be punished. However, if the slave does not die for a couple of days, then the man shall not be punished, because the slave is his property)