كتاب الْمَسَاجِدِ وَمَوَاضِعِ الصَّلاَةِ
5
The Book of Mosques and Places of Prayer
(40)
Chapter: It is recommended to pray Subh early, at the beginning of its time, when it is still dark; and the length of recitation therein
(40)
باب اسْتِحْبَابِ التَّبْكِيرِ بِالصُّبْحِ فِي أَوَّلِ وَقْتِهَا وَهُوَ التَّغْلِيسُ وَبَيَانِ قَدْرِ الْقِرَاءَةِ فِيهَا
Sahih Muslim 646 b

Muhammad b. 'Amr al-Hasan b. 'All reported:

Hajjaj used to delay the prayers, and so we asked Jabir b. 'Abdullah, and the rest of the hadith is the same.
وَحَدَّثَنَاهُ عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، عَنْ سَعْدٍ، سَمِعَ مُحَمَّدَ بْنَ عَمْرِو بْنِ الْحَسَنِ بْنِ عَلِيٍّ، قَالَ كَانَ الْحَجَّاجُ يُؤَخِّرُ الصَّلَوَاتِ فَسَأَلْنَا جَابِرَ بْنَ عَبْدِ اللَّهِ بِمِثْلِ حَدِيثِ غُنْدَرٍ ‏.‏
Reference : Sahih Muslim 646 b
In-book reference : Book 5, Hadith 297
USC-MSA web (English) reference : Book 4, Hadith 1349
  (deprecated numbering scheme)