I heard ‘Abdullah bin az-Zubair say: Do not let your women wear silk, for I heard ʿUmar narrate from the Prophet ﷺ that he said: ʿWhoever wears silk in this world will not wear it in the Hereafter.ʿ And ʿAbdullah bin az-Zubair added his own words: And whoever does not wear it in the Hereafter will not enter Paradise. Allah says: “and their garments therein will be of silkʿ [Fatir 35:33].
عَنِ النَّبِيِّ ﷺ أَنَّهُ قَالَ مَنْ لَبِسَ الْحَرِيرَ فِي الدُّنْيَا لَمْ يَلْبَسْهُ فِي الْآخِرَةِ وقَالَ عَبْدُ اللهِ بْنُ الزُّبَيْرِ مِنْ عِنْدِهِ وَمَنْ لَمْ يَلْبَسْهُ فِي الْآخِرَةِ لَمْ يَدْخُلِ الْجَنَّةَ قَالَ اللهُ تَعَالَى {وَلِبَاسُهُمْ فِيهَا حَرِيرٌ}