From Sahih Muslim (Hadith 5410):
Khalifa b. Ka'b AbCi Dhubyan reported:I heard 'Abdullah b. Zubair addressing the people and saying: Behold! do not dress yuor women with silk clothes for I heard 'Umar b. Khattab as sayinp that he had heard Allah's messenger (ﷺ) as saying: Do not wear silk, for one who wear it in this world will not wear it in the Hereafter
Reference: Muslim 5410