وَحَدَّثَنَاهُ أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا وَكِيعٌ، عَنْ شُعْبَةَ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، قَالَ رَخَّصَ رَسُولُ اللَّهِ صلى الله عليه وسلم - أَوْ رُخِّصَ - لِلزُّبَيْرِ بْنِ الْعَوَّامِ وَعَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ فِي لُبْسِ الْحَرِيرِ لِحِكَّةٍ كَانَتْ بِهِمَا ‏.‏

Anas reported that Allah's Messenger (PBUH) 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. Translation Not Available

Book Ref: Sahih Muslim Book 37 Hadith 5170
Web Ref:  Sahih Muslim Book 24 Hadith 2076 c