Musnad Ahmad 5:754

Abdullah narrated to us, Rawh ibn Abd al-Mu'min narrated to us, Abd al-Wahid ibn Ziyad narrated to us, and Amr al-Naqid narrated to me, Muhammad ibn Fudayl narrated to us, from Abd al-Rahman ibn Ishaq, from al-Nu'man ibn Sa'd, from Ali ibn Abi Talib, may Allah be pleased with him, who said: The Messenger of Allah, may Allah bless him and grant him peace, said: "O Allah, bless my nation in its early morning."