Anas b. Malik reported that 'Abd al-Rahman b. Auf and Zu'bair. b. 'Awwam complained to Messenger of Allah ﷺ about lice; he granted them concession to wear shirts of silk. (Using translation from Muslim 2076e)
أَخْبَرَهُ أَنَّ الزُّبَيْرَ بْنَ الْعَوَّامِ وَعَبْدَ الرَّحْمَنِ بْنَ عَوْفٍ شَكَوَا إِلَى رَسُولِ اللهِ ﷺ الْقُمَّلَ فَرَخَّصَ لَهُمَا فِي قَمِيصِ الْحَرِيرِ فِي غَزَاةٍ لَهُمَا