Sunan al-Nasa'i The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day Abu Hurairah al-Nu'man bin 'Abd al-Salam النعمان بن عبد السلام بن حبيب Amr bin 'Ali bin Bahr al-Bahli عمرو بن علي بن بحر الباهلي Asim bin Kulayb bin Shahab عاصم بن كليب بن شهاب بن المجنون Kulayb bin Shahab كليب بن شهاب Salah bin Mhran al-Shybany صالح بن مهران الشيباني مولاهم أبو سفيان Sufyan bin 'Uyaynah سفيان بن عيينة “I came to Al-Aswad bin Yazid, who was a close friend of mine and said: ‘O Abu ‘Amr, tell me what the Mother of the Believers told you about the prayer of the Messenger of Allah (ﷺ).’ He said: ‘She said: “He used to sleep for the first part of the night and stay up for the latter part.'” https://parallelquran.com/hadith/sunan-al-nasai-1645/