Leviticus 25:14

If you make a sale to your neighbor or a purchase from him, you must not take advantage of each other.

And if thou sell ought unto thy neighbour, or buyest ought of thy neighbour’s hand, ye shall not oppress one another:

“‘If you sell anything to your neighbor, or buy from your neighbor, you shall not wrong one another.

And if thou sell aught unto thy neighbor, or buy of thy neighbor’s hand, ye shall not wrong one another.