Ruth 4:7 References

7 Now this was athe custom in former times in Israel concerning the redemption and the exchange of land to confirm any matter: a man removed his sandal and gave it to another; and this was the manner of attestation in Israel.

a Deuteronomy 25:8-10


Deuteronomy 25

8 "Then the elders of his city shall summon him and speak to him. And if he persists and says, 'I do not desire to take her,'
9 athen his brother's wife shall come to him in the sight of the elders, and pull his sandal off his foot and bspit in his face; and she shall declare, 'Thus it is done to the man who does not build up his brother's house.'
10 "In Israel his name shall be called, 'The house of him whose sandal is removed.'