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.
قَدِمَ مُعَاوِيَةُ الْمَدِينَةَ آخِرَ قَدْمَةٍ قَدِمَهَا فَخَطَبَنَا فَأَخْرَجَ كُبَّةً مِنْ شَعَرٍ قَالَ مَا كُنْتُ أَرَى أَحَدًا يَفْعَلُ هَذَا غَيْرَ الْيَهُودِ إِنَّ النَّبِيَّ ﷺ سَمَّاهُ الزُّورَ يَعْنِي الْوَاصِلَةَ فِي الشَّعَرِ