Musannaf Ibn Abi Shaybah

Hazrat Abdur Rahman bin Aswad says that Hazrat Alqama and Hazrat Aswad sought permission to visit Hazrat Abdullah. They were granted permission. Hazrat Abdullah said to them that soon there will come rulers who will delay the prayers from their prescribed times; at such times, you should perform the prayers at their proper times. Then he stood up and prayed between the two of us. Then he said that I have seen the Messenger of Allah, peace and blessings be upon him, do likewise.