وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ صَدَقَةَ بْنِ يَسَارٍ، أَنَّهُ قَالَ سَأَلْتُ سَعِيدَ بْنَ الْمُسَيَّبِ عَنْ لُبْسِ الْخَاتَمِ، فَقَالَ الْبَسْهُ وَأَخْبِرِ النَّاسَ، أَنِّي أَفْتَيْتُكَ بِذَلِكَ ‏.‏

Yahya related to me from Malik that Sadaqa ibn Yasar said, "Iasked Said ibn al-Musayyab about wearing a ring. He said, 'Wear it,and tell people that I gave you that decision.' " Translation Not Available

Book Ref: Muwatta Imam Malik Book 49 Hadith 1712
Web Ref:  Muwatta Imam Malik Book 49 Hadith 38