Narrated by:Anas
Narrated Anas:(Wearing of silk) was allowed to them (i.e. `AbdurRahman and Az-Zubair) because of the itching they suffered from.
حَدَّثَنِي مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا غُنْدَرٌ، حَدَّثَنَا شُعْبَةُ، سَمِعْتُ قَتَادَةَ، عَنْ أَنَسٍ، رَخَّصَ أَوْ رُخِّصَ لِحِكَّةٍ بِهِمَا.
Bukhari
Fighting for the Cause of Allah (Jihaad) • Hadith 135