Ruth 4:5-7

New Catholic Bible

⁵ Then Boaz said, “When you acquire the field, you also receive the hand of Ruth the Moabite, the wife of the deceased, to raise up the name of the deceased for an inheritance.” ⁶ But the kinsman said, “I cannot redeem it for myself, lest I endanger my own inheritance. You can exercise my right of next of kin, for I cannot redeem it.”

⁷ Now in those days in Israel it was the custom that when there was an act of redemption or of the exchange of lands, one man would take off his sandal and give it to the other in order to confirm the action. This was an act of confirming actions in Israel.