Sahih al-Bukhari 5839
Book 77: Dress · Narrated by Anas
Arabic
حَدَّثَنِي مُحَمَّدٌ، أَخْبَرَنَا وَكِيعٌ، أَخْبَرَنَا شُعْبَةُ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، قَالَ رَخَّصَ النَّبِيُّ صلى الله عليه وسلم لِلزُّبَيْرِ وَعَبْدِ الرَّحْمَنِ فِي لُبْسِ الْحَرِيرِ لِحِكَّةٍ بِهِمَا.
English translation
Narrated Anas:The Prophet (ﷺ) allowed Az-Zubair and `Abdur-Rahman to wear silk because they were suffering from an itch
Reference: Sahih al-Bukhari 5839, Book of Dress. English translation by Dr. Muhammad Muhsin Khan.