Hudhayfah – Allāh be pleased with him – said:

Whoever wears silk; Allāh will make him wear fire for a day – not one of your days, but one of Allāh’s long days.

Reported by Al-Bazzār. Graded sahīh by Shaykh Al-Albānī in Sahīh Al-Targhībi wa Al-Tarhīb Vol. 2 p225.