The Prophet ﷺ said, "Only those who have no share in the Hereafter wear silk."
حدثنا وكيع حدثني عيينة بن عبد الرحمن عن علي بن زيد بن جدعان
أن النبي ﷺ قال إنما يلبس الحرير من لا خلاق له
Its isnad is sahih, and it is an abridgment of 4713, but that one has a different isnad from Ibn Umar.