Jami` at-Tirmidhi, Book 24, Hadith 3 (In-Book) ⓘ
Narrated Anas bin Malik: That 'Abdur Rahman bin 'Awf and Az-Zubair bin Al-'Awwam complained of lice to the Prophet during a battle that they participated in. So he permitted them to wear silk shirts. He (Anas) said: "I saw them wearing them." [Abu 'Eisa said:] This Hadith is Hasan Sahih
حَدَّثَنَا مَحْمُودُ بْنُ غَيْلاَنَ، حَدَّثَنَا عَبْدُ الصَّمَدِ بْنُ عَبْدِ الْوَارِثِ، حَدَّثَنَا هَمَّامٌ، حَدَّثَنَا قَتَادَةُ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ عَبْدَ الرَّحْمَنِ بْنَ عَوْفٍ، وَالزُّبَيْرَ بْنَ الْعَوَّامِ، شَكَيَا الْقَمْلَ إِلَى النَّبِيِّ صلى الله عليه وسلم فِي غَزَاةٍ لَهُمَا فَرَخَّصَ لَهُمَا فِي قُمُصِ الْحَرِيرِ قَالَ وَرَأَيْتُهُ عَلَيْهِمَا . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
also referenced under: Hadith 1722 (Reference) & Volume 3, Book 22, Hadith 1722 (DarusSalam)