Mu'awiya came to Medina for the last time and delivered a sermon. He took out a tuft of hair and said, "I thought that none used to do this (i.e. use false hair) except Jews. The Prophet (ﷺ) labelled such practice, (i.e. the use of false hair), as cheating.
Reference: Sahih al-Bukhari 5938 In-book : Book 77, Hadith 153 USC-MSA web (English) : Vol. 7, Book 72, Hadith 821 (deprecated)
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