Musannaf Ibn Abi Shaybah 6779 — At what hour of the night one stands

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."