حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا حَاتِمُ بْنُ إِسْمَاعِيلَ، عَنْ جَعْفَرِ بْنِ مُحَمَّدٍ، عَنْ أَبِيهِ، قَالَ كَانَ الْحَسَنُ وَالْحُسَيْنُ يَتَخَتَّمَانِ فِي يَسَارِهِمَا ‏.‏ وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ ‏.‏

Narrated Ja'far bin Muhammad : Narrated from his father who said: "Al-Hasan and Al-Husain wore their ring on their left hand." This Hadith is Hasan Sahih. Translation Not Available

Book Ref: Jamiya Tirmidhi Book 24 Hadith 1743
Web Ref:  Jamiya Tirmidhi Vol 3 Book 22 Hadith 1743