One who is granted a concession allowing him to wear silk

It was narrated from Anas bin Malik that the Messenger of Allah ﷺ granted a concession to Zubair bin ‘Awwam and ‘Abdur-Rahman bin ‘Auf, allowing them to wear silk shirts, because of a rash they were suffering from.

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا مُحَمَّدُ بْنُ بِشْرٍ، حَدَّثَنَا سَعِيدُ بْنُ أَبِي عَرُوبَةَ، عَنْ قَتَادَةَ، . أَنَّ أَنَسَ بْنَ مَالِكٍ، نَبَّأَهُمْ أَنَّ رَسُولَ اللَّهِ ﷺ رَخَّصَ لِلزُّبَيْرِ بْنِ الْعَوَّامِ وَلِعَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ فِي قَمِيصَيْنِ مِنْ حَرِيرٍ مِنْ وَجَعٍ كَانَ بِهِمَا حِكَّةٍ .