In the books of Imams Al-Bukhari and Muslim, may Allaah have mercy upon them, it is narrated that Anas, may Allaah be pleased with him, said: "The Messenger of Allah, sallallaahu alayhi wa sallam, has allowed Abdur-Rahman Ibn 'Awf and Az-Zubayr Ibn Al-'Awwam, may Allaah be pleased with them, to wear silk garments because of a skin rash they had."..
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