Abu Hatim al-Razi أبو حاتم الرازي · The Book of the Prayer

"I prayed the Subh with 'Abdullah bin Zubair in the darkness, and when he said the Taslim, I turned to Ibn 'Umar and said: 'What is this prayer?' He said: 'This is how we prayed with the Messenger of Allah and with Abu Bakr and 'Umar. When 'Umar was stabbed, 'Uthman delayed it until there was light.'"

The Messenger of Allah said: "Whoever catches one Rak'ah of the 'Asr before the sun sets, then he has caught it, and whoever catches one Rak'ah of the Subh before the sun rises, then he has caught it."

"The Messenger of Allah did not sleep before the 'Isha' nor stay up (talking) after it."