It wasnarrated from 'Abdullah bin 'Umar that 'Umar bin Khattab saw asilken two piece suit (being offered for sale). He said:
"OMessengerof Allah, why don't you buy this two piece suit (to wearfor meeting)the delegations, and on Fridays?" The Messenger ofAllah (ﷺ) said:"This is only worn by one who has no share in theHereafter." (TR)
English reference (TR): Vol. 4, Book 32, Hadith 3591 (TR)
Arabic reference (TR): Book 32, Hadith 3722 (TR)