The Rewards & Punishments of Deeds · Hadith 64 (#Ḥadīth #3)

أَبِی ره عَنْ عَبْدِ اللَّهِ بْنِ جَعْفَرٍ عَنْ مُحَمَّدِ بْنِ الْحُسَیْنِ بْنِ أَبِی الْخَطَّابِ عَنْ صَفْوَانَ بْنِ یَحْیَی عَنْ إِبْرَاهِیمَ بْنِ أَبِی الْبِلَادِ عَنْ أَبِیهِ یَحْیَی بْنِ أَبِی الْبِلَادِ عَنْ أَبِی جَعْفَرٍ ع قَالَ: السِّوَاکُ یَذْهَبُ بِالْبَلْغَمِ وَ یَزِیدُ فِی الْعَقْلِ.

3. Abi from Abdillah b. Ja’far from Muhammad b. al-Hussain b. Abi al-Khattab from Safwan b. Yahya from Ibrahim b. Abi al-Balad from his father Yahya b. Abi al-Balad from Abi Ja’far who said: “Doing Miswak removes phlegm and increases intelligence.”

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