Musnad Ahmad 32:1917

'Affan narrated to us, Sulayman ibn al-Mughirah narrated to us, Thabit narrated to us, he said: Anas said: "I do not recognize anything among you today that I used to know during the time of the Messenger of Allah, peace and blessings of Allah be upon him, except for your saying: 'There is no god but Allah.'" He said: I said: "O Abu Hamzah, what about the prayer?" He said: "You have prayed when the sun has set. Was that the prayer of the Messenger of Allah, peace and blessings of Allah be upon him?" He said: Then he said: "However, I have not seen a time better for a worker than your time, unless it were a time with a Prophet."