Ruth 4:5-8

5Then Boaz said, “On the day you buy the field from Naomi, you will acquire Ruth the Moabitess, the wife of the deceased man, to perpetuate the man’s name on his property.”

6The redeemer replied, “I can’t redeem it myself, or I will ruin my own inheritance. Take my right of redemption, because I can’t redeem it.”

7At an earlier period in Israel, a man removed his sandal and gave it to the other party in order to make any matter legally binding concerning the right of redemption or the exchange of property. This was the method of legally binding a transaction in Israel.

8So the redeemer removed his sandal and said to Boaz, “Buy back the property yourself.”