The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 111 (#Ḥadīth #111)

111 - وَبِهذَا الإِسنادِ قالَ: قالَ عَلِىُّ بْنُ أَبِي طالِبٍa.sُ: ثَلاثَةٌ يَزِدنَ فِي الحِفظِ وَيَذهَبنَ بِالبَلغِمِ: قِراءَةُ الْقُرْآنِ وَالعَسَلُ وَاللُّبان.

31-111 According to the same documentation, Ali ibn Abi Talib said, “Three things improve the memory and eliminate phlegm: Reciting the Qur’an, honey and chewing frankincense.”

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