Ruth 4:5-8

5Then said Boaz, What day thou buyest the field of the hand of Naomi, thou must buy it also of Ruth the Moabitess, the wife of the dead, to raise up the name of the dead upon his inheritance. 6And the near kinsman said, I cannot redeem it for myself, lest I mar mine own inheritance: take thou my right of redemption on thee; for I cannot redeem it.

7Now this wasthe customin former time in Israel concerning redeeming and concerning exchanging, to confirm all things: a man drew off his shoe, and gave it to his neighbor; and this was the manner of attestation in Israel. 8So the near kinsman said unto Boaz, Buy it for thyself. And he drew off his shoe.