Sahih Muslim 647
Sahih Muslim · Book 5: The Book of Mosques and Places of Prayer · It is recommended to pray Subh early, at the beginning of its time, when it is still dark; and the length of recitation therein
Abu Barza b. Aslami is reported to have said:
وَحَدَّثَنَاهُ أَبُو كُرَيْبٍ، حَدَّثَنَا سُوَيْدُ بْنُ عَمْرٍو الْكَلْبِيُّ ، عَنْ حَمَّادِ بْنِ سَلَمَةَ ، عَنْ سَيَّارِ بْنِ سَلاَمَةَ أَبِي الْمِنْهَالِ ، قَالَ سَمِعْتُ أَبَا بَرْزَةَ الأَسْلَمِيَّ ، يَقُولُ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُؤَخِّرُ الْعِشَاءَ إِلَى ثُلُثِ اللَّيْلِ وَيَكْرَهُ النَّوْمَ قَبْلَهَا وَالْحَدِيثَ بَعْدَهَا وَكَانَ يَقْرَأُ فِي صَلاَةِ الْفَجْرِ مِنَ الْمِائَةِ إِلَى السِّتِّينَ وَكَانَ يَنْصَرِفُ حِينَ يَعْرِفُ بَعْضُنَا وَجْهَ بَعْضٍ .
The Messenger of Allah (ﷺ) delayed the night prayer till a third of the night had passed and he did not approve of sleeping before it, and talking after it, and he used to recite in the morning prayer from one hundred to sixty verses (and completed the prayer at such hours) when we recognised the faces of one another.