Sunan an-Nasa'i, Book 21, Hadith 123 (In-Book) ⓘ
It was narrated that Al-Bara bin 'Azib said: "The Messenger of Allah commanded us to do seven things, and forbade us form seven things. He commanded us to visit the risk, to reply (say: Yarhamuk Allah, may Allah have mercy on you) to one who sneezes, to fulfill our oaths, to support the oppressed, to spread the greeting of Salam, to accept invitation, and to attend funerals. And he forbade us from using gold rings, silver vessels, Mayathir, the Qasiyyah, Al-Istabraq, silk and Ad-Dibaj."
أَخْبَرَنَا سُلَيْمَانُ بْنُ مَنْصُورٍ الْبَلْخِيُّ، قَالَ حَدَّثَنَا أَبُو الأَحْوَصِ، ح وَأَنْبَأَنَا هَنَّادُ بْنُ السَّرِيِّ، فِي حَدِيثِهِ عَنْ أَبِي الأَحْوَصِ، عَنْ أَشْعَثَ، عَنْ مُعَاوِيَةَ بْنِ سُوَيْدٍ، قَالَ هَنَّادٌ قَالَ الْبَرَاءُ بْنُ عَازِبٍ وَقَالَ سُلَيْمَانُ عَنِ الْبَرَاءِ بْنِ عَازِبٍ، قَالَ أَمَرَنَا رَسُولُ اللَّهِ صلى الله عليه وسلم بِسَبْعٍ وَنَهَانَا عَنْ سَبْعٍ أَمَرَنَا بِعِيَادَةِ الْمَرِيضِ وَتَشْمِيتِ الْعَاطِسِ وَإِبْرَارِ الْقَسَمِ وَنُصْرَةِ الْمَظْلُومِ وَإِفْشَاءِ السَّلاَمِ وَإِجَابَةِ الدَّاعِي وَاتِّبَاعِ الْجَنَائِزِ وَنَهَانَا عَنْ خَوَاتِيمِ الذَّهَبِ وَعَنْ آنِيَةِ الْفِضَّةِ وَعَنِ الْمَيَاثِرِ وَالْقَسِّيَّةِ وَالإِسْتَبْرَقِ وَالْحَرِيرِ وَالدِّيبَاجِ .
also referenced under: Hadith 1939 (Reference) & Volume 3, Book 21, Hadith 1941 (DarusSalam)