Deuteronomy 5:13-14

13Six days you are to labor and do all your work,

14but the seventh day is a Shabbat to Adonai your God. In it you are not to do any work—not you or your son or your daughter, or your slave or your maid, or your ox, your donkey or any of your livestock or the outsider within your gates, so that your slave and your maid may rest as you do.