The Prophet ﷺ forbade us to use seven things: He forbade using gold rings, silk, Istabraq, Dibaj, red Mayathir, Al-Qassiy, and silver utensils. He ordered us to do seven other things. To pay a visit to the sick; to follow funeral processions; to say, "May Allah be merciful to you" to a sneezer if he says "Praise be to Allah"; to return greetings, to accept invitations; to help others to fulfil their oaths and to help the oppressed ones.  

سَمِعْتُ الْبَرَاءَ بْنَ عَازِبٍ ؓ يَقُولُ نَهَانَا النَّبِيُّ ﷺ عَنْ سَبْعٍ نَهَى عَنْ خَاتَمِ الذَّهَبِ أَوْ قَالَ حَلْقَةِ الذَّهَبِ وَعَنِ الْحَرِيرِ وَالإِسْتَبْرَقِ وَالدِّيبَاجِ وَالْمِيثَرَةِ الْحَمْرَاءِ وَالْقَسِّيِّ وَآنِيَةِ الْفِضَّةِ وَأَمَرَنَا بِسَبْعٍ بِعِيَادَةِ الْمَرِيضِ وَاتِّبَاعِ الْجَنَائِزِ وَتَشْمِيتِ الْعَاطِسِ وَرَدِّ السَّلاَمِ وَإِجَابَةِ الدَّاعِي وَإِبْرَارِ الْمُقْسِمِ وَنَصْرِ الْمَظْلُومِ  

The Prophet ﷺ forbade the wearing of a gold ring.  

عَنِ النَّبِيِّ ﷺ أَنَّهُ نَهَى عَنْ خَاتَمِ الذَّهَبِ وَقَالَ عَمْرٌو أَخْبَرَنَا شُعْبَةُ عَنْ قَتَادَةَ سَمِعَ النَّضْرَ سَمِعَ بَشِيرًا مِثْلَهُ  

Messenger of Allah ﷺ wore a gold or silver .. ring and placed its stone towards the palm of his hand. The people also started wearing gold rings like it, but when the Prophet ﷺ saw them wearing such rings, he threw away that golden ring and then wore a silver ring.  

أَنَّ رَسُولَ اللَّهِ ﷺ اتَّخَذَ خَاتَمًا مِنْ ذَهَبٍ وَجَعَلَ فَصَّهُ مِمَّا يَلِي كَفَّهُ فَاتَّخَذَهُ النَّاسُ فَرَمَى بِهِ وَاتَّخَذَ خَاتَمًا مِنْ وَرِقٍ أَوْ فِضَّةٍ