Exodus 23:12
“Six days you shall do your work, and on the seventh day you shall rest, that your ox and your donkey may have rest, and the son of your servant, and the alien may be refreshed.
Leviticus 23:3
Six days shall work be done, but on the seventh day is a Sabbath of solemn rest, a holy convocation; you shall do no kind of work. It is a Sabbath to Yahweh in all your dwellings.