Musannaf Ibn Abi Shayba 3:6365

Waki’ narrated to us, he said: Mis’ar narrated to us, from ‘Abd al-Karim Abu Umayyah, from Tawus, who said: The Messenger of Allah (may Allah bless him and grant him peace) was asked: "Which of the people is the best in recitation?" He said: "The one who, when you see him reciting, you see that he fears Allah."