The Sufficient (Vol 6) · Hadith 1567 (#Ḥadīth #5)

عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ جَعْفَرِ بْنِ مُحَمَّدٍ الْأَشْعَرِيِّ عَنِ ابْنِ الْقَدَّاحِ عَنْ أَبِي عَبْدِ اللَّهِ ( عليه السلام ) قَالَ قَالَ النَّبِيُّ ( صلى الله عليه وآله ) تَخَلَّلُوا فَإِنَّهُ مَصْلَحَةٌ لِلِّثَةِ وَ النَّوَاجِدِ .

5. A number of our people have narrated from Sahl ibn Ziyad from Ja‘far ibn Muhammad al-Ash‘ariy from ibn al-Qaddah who has said the following: “Abu ‘Abd Allah , has said that the Messenger of Allah has said, ‘You must use a toothpick it is beneficial for the gum (gingival) and the back teeth.’”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).