"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 r property.
New King James Version (NKJV) Copyright © 1982 by Thomas Nelson, Inc.
Leviticus 25:44 - 46
And as for your male and female slaves whom you may have - from the nations that are around you, from them you may buy male and female slaves.