ENOfficial
‘Abdallah b. Ja'far said the Prophet (ﷺ) used to wear a signet-ring on his right hand. Ibn Majah transmitted it, and Abu Dawud and Nasa’i transmitted it on ‘Ali’s authority.
Source: sunnah.com
Other translations
Arabic
عَنْ عَبْدِ اللَّهِ بْنِ جَعْفَرٍ قَالَ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَتَخَتَّمُ فِي يَمِينه. رَوَاهُ ابْن مَاجَه وَرَوَاهُ أَبُو دَاوُد وَالنَّسَائِيّ عَن عَليّ
sunnah.com