When Muawiya bin Abu Sufyan came to Medina for the last time, he delivered a sermon before us.He took out a tuft of hair and said, "I never thought that someone other than the Jews would do such athing (i.e. use false hair). The Prophet (ﷺ) named such a practice, 'Az-Zur' (i.e. falsehood)," meaning theuse of false hair.