Tanach do Powtórzonego Prawa 31:10

You may sow your land for six years, and gather its crops.

But on the seventh [year] you must let it rest, and abandon it [by not eating its produce], and let the needy among your people eat it. What they leave over, the beasts of the field can eat. Do the same with your vineyard and your olive [trees].

You may do your work six days, but on the seventh day you must cease; so that your ox and your donkey may rest, and the son of your female slave may be refreshed, and [also] the stranger.