Sunan Ibn Majah 213
Mus'ab bin Sa'd narrated that his father said:
"The Messenger of Allah said: 'The best of you is the one who learns the Qur'an and teaches it.' " 'Then he (Mus'ab) took me (the narrator) by the hand and made me sit here, and I started to teach Qur'an.'"
حَدَّثَنَا أَزْهَرُ بْنُ مَرْوَانَ، حَدَّثَنَا الْحَارِثُ بْنُ نَبْهَانَ، حَدَّثَنَا عَاصِمُ بْنُ بَهْدَلَةَ، عَنْ مُصْعَبِ بْنِ سَعْدٍ، عَنْ أَبِيهِ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ ‏
"‏ خِيَارُكُمْ مَنْ تَعَلَّمَ الْقُرْآنَ وَعَلَّمَهُ ‏"‏ ‏.‏ قَالَ وَأَخَذَ بِيَدِي فَأَقْعَدَنِي مَقْعَدِي هَذَا أُقْرِئُ ‏.‏