Ali reported:

He the Prophet (ﷺ), forbade me that I should wear my ring in this (forefinger) or in that near it. 'Asim (one of the narrators in the chain of transmitters) said: He did not remember which of the two (fingers) he pointed out; and he forbade to wear Qassi material (silk garments), and to sit on the silk saddle cloth, and he said: As regards Qassi, it is a variegated garment which was brought from Egypt and Syria which had figures upon it, and as regards Mayathir, it is something which women prepared for their husbands as red cloths for their saddles.

حَدَّثَنِي مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، وَأَبُو كُرَيْبٍ جَمِيعًا عَنِ ابْنِ إِدْرِيسَ، - وَاللَّفْظُ لأَبِي كُرَيْبٍ - حَدَّثَنَا ابْنُ إِدْرِيسَ، قَالَ سَمِعْتُ عَاصِمَ بْنَ كُلَيْبٍ، عَنْ أَبِي بُرْدَةَ، عَنْ عَلِيٍّ، قَالَ نَهَانِي - يَعْنِي النَّبِيَّ صلى الله عليه وسلم - أَنْ أَجْعَلَ خَاتَمِي فِي هَذِهِ أَوِ الَّتِي تَلِيهَا - لَمْ يَدْرِ عَاصِمٌ فِي أَىِّ الثِّنْتَيْنِ - وَنَهَانِي عَنْ لُبْسِ الْقَسِّيِّ وَعَنْ جُلُوسٍ عَلَى الْمَيَاثِرِ ‏.‏ قَالَ فَأَمَّا الْقَسِّيُّ فَثِيَابٌ مُضَلَّعَةٌ يُؤْتَى بِهَا مِنْ مِصْرَ وَالشَّامِ فِيهَا شِبْهُ كَذَا وَأَمَّا الْمَيَاثِرُ فَشَىْءٌ كَانَتْ تَجْعَلُهُ النِّسَاءُ لِبُعُولَتِهِنَّ عَلَى الرَّحْلِ كَالْقَطَائِفِ الأُرْجُوَانِ ‏.‏