كتاب الحج
15
The Book of Pilgrimage
(49)
Chapter: It is recommended to send the weak among women and others ahead from Al-Muzdalifah to Mina at the end of the night, before it gets crowded, but it is recommended for others to stay there until they have prayed Subh in Al-Muzdalifah
(49)
باب اسْتِحْبَابِ تَقْدِيمِ دَفْعِ الضَّعَفَةِ مِنَ النِّسَاءِ وَغَيْرِهِنَّ مِنْ مُزْدَلِفَةَ إِلَى مِنًى فِي أَوَاخِرِ اللَّيَالِي قَبْلَ زَحْمَةِ النَّاسِ وَاسْتِحْبَابِ الْمُكْثِ لِغَيْرِهِمْ حَتَّى يُصَلُّوا الصُّبْحَ بِمُزْدَلِفَةَ

'Ata' reported from Ibn Abbas (Allah be pleased with them):

Allah's Messenger (ﷺ) sent me from Muzdalifa along with his luggage (in the very early part of @he dawn). I (Ibn Juraij, one of the narrators) said (to 'Ati'): Has this (news) reached you that Ibn 'Abbas (Allah be pleased with them) had said:" He (Allah's Messenger) had sent me in the latter part of the night"? Thereupon he said: No, it was the dawn. I (again) said to him: (Did you hear) Ibn 'Abbas (Allah be pleased with them) having said this (too):" We stoned al-Jamra before the dawn prayer"? So where did he observe the dawn prayer? He said: No. But he said only so much (as described above).
وَحَدَّثَنَا عَبْدُ بْنُ حُمَيْدٍ، أَخْبَرَنَا مُحَمَّدُ بْنُ بَكْرٍ، أَخْبَرَنَا ابْنُ جُرَيْجٍ، أَخْبَرَنِي عَطَاءٌ، أَنَّ ابْنَ عَبَّاسٍ، قَالَ بَعَثَ بِي رَسُولُ اللَّهِ صلى الله عليه وسلم بِسَحَرٍ مِنْ جَمْعٍ فِي ثَقَلِ نَبِيِّ اللَّهِ صلى الله عليه وسلم ‏.‏ قُلْتُ أَبَلَغَكَ أَنَّ ابْنَ عَبَّاسٍ قَالَ بَعَثَ بِي بِلَيْلٍ طَوِيلٍ قَالَ لاَ إِلاَّ كَذَلِكَ بِسَحَرٍ ‏.‏ قُلْتُ لَهُ فَقَالَ ابْنُ عَبَّاسٍ رَمَيْنَا الْجَمْرَةَ قَبْلَ الْفَجْرِ ‏.‏ وَأَيْنَ صَلَّى الْفَجْرَ قَالَ لاَ إِلاَّ كَذَلِكَ ‏.‏
Reference : Sahih Muslim 1294
In-book reference : Book 15, Hadith 333
USC-MSA web (English) reference : Book 7, Hadith 2968
  (deprecated numbering scheme)