Musnad Abu Ya'la al-Mawsili 64:1

Hadb ibn Khalid narrated to us, Aban narrated to us, Yahya ibn Abi Kathir narrated to us, Zayd narrated to me, from Abu Salam, from al-Habrani, from Abd al-Rahman ibn Shibl, that he heard the Messenger of Allah, may Allah bless him and grant him peace, saying: "Recite the Quran, and do not exceed the limits regarding it, and do not turn away from it, and do not consume [wealth] by means of it, and do not seek to increase [your worldly gain] through it."