Musnad Ahmad 27:475

'Abd al-Razzaq narrated to us, Ma'mar narrated to us, from al-Zuhri, from Salim, from Ibn 'Umar, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "There is no envy except regarding two: A man whom Allah has given the Qur'an, so he stands with it during the hours of the night and the hours of the day; and a man whom Allah has given wealth, so he spends from it during the hours of the night and the hours of the day."