أَخْبَرَنَا نَصْرُ بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا خَالِدٌ، قَالَ حَدَّثَنَا سَعِيدٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلمرَخَّصَ لِعَبْدِ الرَّحْمَنِ وَالزُّبَيْرِ فِي قُمُصِ حَرِيرٍ كَانَتْ بِهِمَا يَعْنِي لِحِكَّةٍ ‏.‏

It was narrated from Anas that

The Prophet [SAW] granted a concession to 'Abdur-Rahman and Az-Zubair to wear silken shirts because of scabies that they were suffering from.