Musnad Ahmad 3:131

Abdullah narrated to us, Abu Ibrahim al-Turjumani narrated to us, Isma'il ibn 'Ayyash narrated to us, from Ibn Abi Farwah, from Muhammad ibn Yusuf, from 'Amr ibn 'Uthman ibn 'Affan, from his father, who said: The Messenger of Allah, peace and blessings of Allah be upon him, said: "Sleeping in the morning prevents provision."