Sayyiduna Mu'awiyah (may Allah be pleased with him) relates: I heard the Prophet (peace and blessings be upon him) say: "O people! Knowledge comes only through learning, and understanding comes only through learning. Whomever Allah Almighty intends good for, He grants him understanding of the religion. And of the servants of Allah Almighty, it is the scholars who fear Allah Almighty."
Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator who is not named, and the narrator named Utbah bin Abi Hakim was declared thiqah (trustworthy) by Imam Abu Hatim, Imam Abu Zur'ah and Imam Ibn Hibban (may Allah have mercy on them), though a group declared him da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب العلم / 537