Musannaf Ibn Abi Shayba 16:430

Abu Bakr narrated to us, he said: Affan narrated to us, he said: Hammad bin Salamah informed us, he said: Ibn Sirin informed us, from Abu Mijlaz, from Hafsah, that Utarid bin Hajib came with a garment of silk which Kisra had clothed him with. Umar said: "Shall I not buy it for you, O Messenger of Allah?" He said: "Indeed, only he who has no share [in the Hereafter] wears it."