And if you sell anything to your neighbor or buy from your neighbor's hand, you shall not oppress one another.
Leviticus 25:14
Surrounding context
25:13 "In this Year of Jubilee, each of you shall return to his possession.
25:14 And if you sell anything to your neighbor or buy from your neighbor's hand, you shall not oppress one another.
25:15 According to the number of years after the Jubilee you shall buy from your neighbor, and according to the number of years of crops he shall sell to you.