Sunan At-Tirmidhi

Salim narrated from his father who said that the Messenger of Allah said:""There is to be no envy except for two: A man to whom Allah grants wealth and he spends from it during the hours of the night and the hours of the day. And a man to whom Allah grants (memorization of) the Quran so he stands with it (in prayer) during the hours of the night and the hours of the day