Musnad Ahmad 345
It was narrated that `Ali bin Zaid said:
I came to Madinah and entered upon Salim bin ‘Abdullah, and i was wearing a silk jubbah. Salim said to me: What are you doing with this garment? I heard my father narrate from `Umar bin al-Khattab (c.) that the Messenger of Allah (ﷺ) said: `Silk is only worn by one who has no share [in the Hereafter!
حَدَّثَنَا مُحَمَّدُ بْنُ بَكْرٍ، أَنْبَأَنَا عُيَيْنَةُ، عَنْ عَلِيِّ بْنِ زَيْدٍ، قَالَ قَدِمْتُ الْمَدِينَةَ فَدَخَلْتُ عَلَى سَالِمِ بْنِ عَبْدِ اللَّهِ وَعَلَيَّ جُبَّةُ خَزٍّ فَقَالَ لِي سَالِمٌ مَا تَصْنَعُ بِهَذِهِ الثِّيَابِ سَمِعْتُ أَبِي يُحَدِّثُ عَنْ عُمَرَ بْنِ الْخَطَّابِ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ إِنَّمَا يَلْبَسُ الْحَرِيرَ مَنْ لَا خَلَاقَ لَهُ‏.‏