Sahih Muslim 2078
Sahih Muslim · Book 37: The Book of Clothes and Adornment · The Prohibition Of Wearing Rings On The Middle Finger And The One That Is Next To It
'Ali reported:
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى ، أَخْبَرَنَا أَبُو الأَحْوَصِ ، عَنْ عَاصِمِ بْنِ كُلَيْبٍ ، عَنْ أَبِي بُرْدَةَ ، قَالَ قَالَ عَلِيٌّ نَهَانِي رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ أَتَخَتَّمَ فِي إِصْبَعِي هَذِهِ أَوْ هَذِهِ . قَالَ فَأَوْمَأَ إِلَى الْوُسْطَى وَالَّتِي تَلِيهَا .
Allah's Messenger (ﷺ) forbade me that I should wear a ring in this and that finger of mine, and he pointed to the middle finger and the next one.