Mishkat al-Masabih #235

He also reported in mursal form that God’s messenger was asked which of two men who had been among the B. Isra’il was superior, one who was a learned man who observed the prescribed prayers, then sat and taught men what is good, the other who fasted by day and prayed during the night. He replied, “The superiority of this learned man who observed the prescribed prayers, then sat and taught men what is good over the devout man who fasted by day and prayed during the night is like my superiority over the most contemptible among you.” Darimi transmitted it.