Musannaf Ibn Abi Shaybah

Hazrat Yahya bin Ya'la (may Allah be pleased with him) says that I and one of my companions returned from jihad, and the time for prayer arrived. Upon this, Hazrat Usman bin Aswad said: "Go and perform the prayer, walk at your usual pace, whatever part of the prayer you catch with the Imam, perform it, and whatever you miss, make it up later."