Leviticus 25:11

25:11 That fiftieth year will be your jubilee; you must not sow the land, harvest its aftergrowth, or pick the grapes of its unpruned vines.

Leviticus 25:5

25:5 You must not gather in the aftergrowth of your harvest and you must not pick the grapes of your unpruned vines; the land must have a year of complete rest.