Sahih al-Bukhari, Hadith 5867 ⓘ
Narrated Abdullah bin `Umar: Allah's Messenger wore a gold ring, then he threw it and said, "I will never wear it." The people also threw their (gold) rings.
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَلْبَسُ خَاتَمًا مِنْ ذَهَبٍ فَنَبَذَهُ فَقَالَ " لاَ أَلْبَسُهُ أَبَدًا " . فَنَبَذَ النَّاسُ خَوَاتِيمَهُمْ.
also referenced under: Book 77, Hadith 84 (In-Book) & Volume 7, Book 72, Hadith 756 (USC-MSA)