At what hour of the night one stands in prayer

Al-Hasan said: The Prophet (peace and blessings be upon him) was asked: "Which time of the night is best for the night prayer (tahajjud)?" He said: "The middle part of the night."

Al-Hasan said: A man asked Sayyiduna Abu Dharr (may Allah be pleased with him): "In which part of the night is supplication most readily answered?" He said: "In the middle part of the night." The man said: "Who is able to get up at that time?" Sayyiduna Abu Dharr (may Allah be pleased with him) said: "Whoever fears sets out by night."

Abu Burdah said: Once Sayyiduna Mu'adh (may Allah be pleased with him) said to Sayyiduna Abu Musa (may Allah be pleased with him): "How do you recite the Qur'an?" He said: "I recite it at intervals, bit by bit; I do not complete my whole routine at one time." Then Sayyiduna Abu Musa asked Sayyiduna Mu'adh: "How do you recite it, O Mu'adh?" He said: "I sleep in the first part of the night so that I may gain the strength to get up in the last part of the night. I hope to receive as much reward for this sleep as I do for my wakefulness."

Ubaydullah bin Abdullah bin Utbah said: Sayyiduna Abdullah (may Allah be pleased with him) would get up after people had gone to sleep, and I would hear from him (because of his weeping and supplication) a sound like the humming of bees until morning.

Umm Ishaq bint Talhah said: Sayyiduna al-Hasan bin Ali (may Allah be pleased with him) used to worship Allah in the first part of the night, and Sayyiduna al-Husayn (may Allah be pleased with him) in the last part of the night.

Whenever Sayyiduna Ibn Umar (may Allah be pleased with them both) woke up at night, he would pray.