حَدَّثَنَا يَحْيَى بْنُ يَحْيَى التَّمِيمِيُّ، أَخْبَرَنَا أَبُو خَيْثَمَةَ، عَنْ أَشْعَثَ بْنِ أَبِي الشَّعْثَاءِ، ح وَحَدَّثَنَا أَحْمَدُ بْنُ عَبْدِ اللَّهِ بْنِ يُونُسَ، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا أَشْعَثُ، حَدَّثَنِي مُعَاوِيَةُ بْنُ سُوَيْدِ، بْنِ مُقَرِّنٍ قَالَ دَخَلْتُ عَلَى الْبَرَاءِ بْنِ عَازِبٍ فَسَمِعْتُهُ يَقُولُ أَمَرَنَا رَسُولُ اللَّهِ صلى الله عليه وسلم بِسَبْعٍ وَنَهَانَا عَنْ سَبْعٍ أَمَرَنَا بِعِيَادَةِ الْمَرِيضِ وَاتِّبَاعِ الْجَنَازَةِ وَتَشْمِيتِ الْعَاطِسِ وَإِبْرَارِ الْقَسَمِ أَوِ الْمُقْسِمِ وَنَصْرِ الْمَظْلُومِ وَإِجَابَةِ الدَّاعِي وَإِفْشَاءِ السَّلاَمِ ‏.‏ وَنَهَانَا عَنْ خَوَاتِيمَ أَوْ عَنْ تَخَتُّمٍ بِالذَّهَبِ وَعَنْ شُرْبٍ بِالْفِضَّةِ وَعَنِ الْمَيَاثِرِ وَعَنِ الْقَسِّيِّ وَعَنْ لُبْسِ الْحَرِيرِ وَالإِسْتَبْرَقِ وَالدِّيبَاجِ ‏.‏

Abu 'Uthman reported

While we were with 'Utba b. Farqad there came a letter of 'Umar (containing the instructions) that Allah's Messenger (ﷺ) had said: None should wear silk (with the exception of so much) but he will have nothing of it in the Hereafter. Abu 'Uthman said: To the extent of two fingers which are close to the thumb, and I was shown the (silk) borders of the Tayalisa mantle (which were about two fingers in breadth and I saw them.