Sahih al-Bukhari 5028
صحيح البخاري#5028SahihNarrated `Uthman bin `Affan:The Prophet (ﷺ) said, "The most superior among you (Muslims) are those who learn the Qur'an and teach it
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 66:50