Leviticus 25:22-24

The eighth year you will sow seed but eat the the old, stored produce until the ninth year; that is, until the produce of the eighth year comes in, you will eat the old, stored food.

"'The land is not to be sold in perpetuity, because the land belongs to me -you are only foreigners and temporary residents with me.

Therefore, when you sell your property, you must include the right of redemption.