The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day
20/13. Chapter:
Mentioning the prayer of the Messenger of Allah (SAW) at night
Sunan an-Nasai
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا يَزِيدُ، قَالَ أَنْبَأَنَا حُمَيْدٌ، عَنْ أَنَسٍ، قَالَ مَا كُنَّا نَشَاءُ أَنْ نَرَى رَسُولَ اللَّهِ صلى الله عليه وسلم فِي اللَّيْلِ مُصَلِّيًا إِلاَّ رَأَيْنَاهُ وَلاَ نَشَاءُ أَنْ نَرَاهُ نَائِمًا إِلاَّ رَأَيْنَاهُ .
It was narrated that Anas said: "Every time we wanted to see the Messenger of Allah (ﷺ) praying at night we saw him, and every time we wanted to see him sleeping, we saw him."
Reference : Sunan an-Nasa'i 1627In-book reference : Book 20, Hadith 30English translation : Vol. 2, Book 20, Hadith 1628