The Messenger of Allah [SAW] granted a concession to 'Abdur-Rahman bin 'Awf and Az-Zubair bin Al-'Awwam allowing them to wear silken shirts because of scabies that they were suffering from.
أَنَّ رَسُولَ اللَّهِ ﷺ أَرْخَصَ لِعَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ وَالزُّبَيْرِ بْنِ الْعَوَّامِ فِي قُمُصِ حَرِيرٍ مِنْ حِكَّةٍ كَانَتْ بِهِمَا