The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 137 (#Ḥadīth #137)

137 - وَبِهذَا الإِسنادِ عَنْ عَلِىِّ بْنِ أَبِي طالِبٍ عَلَيْهِالسَّلامُ قالَ: عَلَيْكُمْ بِالقَرعِ، فَإِنَّهُ يَزِيدُ فِي الدِّماغِ.

31-137 According to the same documentation, Ali ibn Abi Talib said, “I advise you to eat gourds since they strengthen mental powers.”

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