Anas reported that Messenger of Allah ﷺ granted concession, or Zubair b. Awwam and 'Abd Al-Rahman b. Auf were granted concession, for the wearing of silk because of the itch that they both had.
رَخَّصَ رَسُولُ اللَّهِ ﷺ أَوْ رُخِّصَ لِلزُّبَيْرِ بْنِ الْعَوَّامِ وَعَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ فِي لُبْسِ الْحَرِيرِ لِحِكَّةٍ كَانَتْ بِهِمَا