EJ2000(i)
5 Then Boaz replied, The day that thou dost receive the field of the hand of Naomi, thou must also receive Ruth, the Moabitess, the wife of the dead, to raise up the name of the dead upon his inheritance.
6 And the redeemer said, I cannot redeem it for myself lest I ruin my own inheritance; redeem thou; I cede my right to you, for I shall not be able to redeem it.
7 Now for a long time in Israel there had been this custom concerning redemption or contracts, that for the confirmation of all matters: one plucked off his shoe and gave it to his neighbour, and this was a testimony in Israel.