Narrated 'Ali bin Abi Talib:
that the Messenger of Allah (ﷺ) said: "The best of you is he who learns the Qur'an and teaches it." (JA)
English reference (JA): Vol. 5, Book 42, Hadith 2909 (JA)
Arabic reference (JA): Book 45, Hadith 3157 (JA)