Abu Hurairah · The Book of the Prayer

"The Prophet prayed the 'Asr when the sun was shining into my room and there were no shadows yet."

"The Messenger of Allah said: 'Were it not that it would be too difficult for my Ummah, I would have delayed the 'Isha' prayer until one third or one half of the night had passed.'"

When the Messenger of Allah was coming back from the battle of Khaibar, night came and he felt sleepy, so he made camp and said to Bilal: "Keep watch for us tonight." Bilal prayed as much as Allah decreed for him, and the Messenger of Allah and his Companions went to sleep. When dawn was approaching, Bilal went to his mount, facing towards the east, watching for the dawn. Then Bilal's eyes grew heavy while he was leaning on his…

"The Messenger of Allah used to like to delay the 'Isha', and he disliked sleeping before it, and engaging in conversation after it."