[Machine] Abu Khalid, whose name is known to me as Mujahir, and others say Abu Makhlad, from Abu Al-'Aliyah, said, narrating from Abu Muslim, he said, "I asked Abu Dharr, 'Which is the best night prayer?' He said, 'I asked the Messenger of Allah ﷺ and he said, "Half of the night and whoever does less than that".'"  

عَنْ أَبِي خَالِدٍ وَاسْمُهُ عِنْدِي مُهَاجِرٌ وَغَيْرُهُ يَقُولُ أَبُو مَخْلَدٍ عَنْ أَبِي الْعَالِيَةِ قَالَ حَدَّثَنِي أَبُو مُسْلِمٍ قَالَ قُلْتُ لِأَبِي ذَرٍّ أَيُّ صَلَاةِ اللَّيْلِ أَفْضَلَ؟ فَقَالَ سَأَلْتُ رَسُولَ اللهِ ﷺ فَقَالَ «نِصْفُ اللَّيْلِ وَقَلِيلٌ فَاعِلُهُ»  

"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.'" (Using translation from Nasāʾī 1640)  

عَنْ صَلَاةِ رَسُولِ اللهِ ﷺ قَالَ قَالَتْ كَانَ «يَنَامُ أَوَّلَ اللَّيْلِ وَيُحْيِي آخِرَهُ»