Musannaf Ibn Abi Shaybah

Hazrat Abdullah bin Masood (may Allah be pleased with him) said that the bearer of the Qur'an should be recognized by his night when people are sleeping, and by his day when people are beginning their morning, and by his sorrow when people are rejoicing, and by his weeping when people are laughing, and by his silence when people are engaged in conversation, and by his humility when people are showing arrogance. And it is appropriate for the bearer of the Qur'an to be one who weeps, is sorrowful, forbearing, wise, and of a quiet nature. And it is not appropriate for the bearer of the Qur'an (Hazrat Abu Bakr says that these words were said) to be one who makes noise, shouts, or becomes angry.