Hadith 1640
أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ الْمُبَارَكِ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا زُهَيْرٌ، عَنْ أَبِي إِسْحَاقَ، قَالَ أَتَيْتُ الأَسْوَدَ بْنَ يَزِيدَ وَكَانَ لِي أَخًا صَدِيقًا فَقُلْتُ يَا أَبَا عَمْرٍو حَدِّثْنِي مَا حَدَّثَتْكَ بِهِ أُمُّ الْمُؤْمِنِينَ عَنْ صَلاَةِ رَسُولِ اللَّهِ صلى الله عليه وسلم . قَالَ قَالَتْ كَانَ يَنَامُ أَوَّلَ اللَّيْلِ وَيُحْيِي آخِرَهُ .
It was narrated that Abu Ishaq said:
"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.'"
Reference : Sunan an-Nasa'i 1640
In-book reference : Book 20, Hadith 43