Sunan Ibn Majah, Volume 1, Book 1, Hadith 212 (DarusSalam) ⓘ
It was narrated that 'Uthmaan bin 'Affan said: "The Messenger of Allah said: 'The most excellent of you is the one who learns the Qur'an and teaches it.'"
حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا وَكِيعٌ، حَدَّثَنَا سُفْيَانُ، عَنْ عَلْقَمَةَ بْنِ مَرْثَدٍ، عَنْ أَبِي عَبْدِ الرَّحْمَنِ السُّلَمِيِّ، عَنْ عُثْمَانَ بْنِ عَفَّانَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " أَفْضَلُكُمْ مَنْ تَعَلَّمَ الْقُرْآنَ وَعَلَّمَهُ " .
also referenced under: Hadith 212 (Reference) & Book 1, Hadith 217 (In-Book)