Anas bin Malik reported,

The Messenger of Allah ﷺ granted permission, or granted permission to Zubayr bin Awwam and Abdul-Rahman bin Awf, to wear silk because of an itch they both suffered from.

Muslim 5432

Sahih

و حدثناه محمد بن المثنى وابن بشار قالا حدثنا محمد بن جعفر حدثنا شعبة بهذا الإسناد مثله

مسلم 5432صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Clothing and adornment
Chapter
Permissibility of wearing silk for men if they have an itch or similar condition
Numbering
Darussalam 5432
Muslim 5432