Sunan Abi Dawud, Hadith 4216 ⓘ
Nafi' said that Ibn 'Umar used to wear his signet-ring on his left hand.
حَدَّثَنَا هَنَّادٌ، عَنْ عَبْدَةَ، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، أَنَّ ابْنَ عُمَرَ، كَانَ يَلْبَسُ خَاتَمَهُ فِي يَدِهِ الْيُسْرَى .
also referenced under: Hadith 4228 (DarusSalam)