Deuteronomy 25:8-10

8Then the elders of his city will summon him and speak to him. And if he stands firm and says, ‘I do not want to marry her,’

9then his brother’s widow shall approach him in the presence of the elders, and pull his sandal off his foot and spit in his face; and she shall answer and say, ‘So it is done to that man who does not build up his brother’s household.’

10In Israel his [family] name shall be, ‘The house of him whose sandal was removed.’