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

Abdullah, the freed slave of (Hadrat) Asma', reported:

Asma' (Allah be pleased with her), as she was in the house at Muzdalifa, asked me whether the moon had set. I said: No. She prayed for some time, and again said: My son has the moon set? I said: Yes. And she said: Set forth along with me, and so we set forth until (we reached Mini) and the stoned at al-Jamra. She then prayed in her place. I said to her: Respected lady, we set forth (in the very early part of dawn) when it was dark, whereupon she said: My son, there is no harm in it; Allah's Apostle (ﷺ) had granted permission to women.
حَدَّثَنَا مُحَمَّدُ بْنُ أَبِي بَكْرٍ الْمُقَدَّمِيُّ، حَدَّثَنَا يَحْيَى، - وَهُوَ الْقَطَّانُ - عَنِ ابْنِ جُرَيْجٍ، حَدَّثَنِي عَبْدُ اللَّهِ، مَوْلَى أَسْمَاءَ قَالَ قَالَتْ لِي أَسْمَاءُ وَهْىَ عِنْدَ دَارِ الْمُزْدَلِفَةِ هَلْ غَابَ الْقَمَرُ قُلْتُ لاَ ‏.‏ فَصَلَّتْ سَاعَةً ثُمَّ قَالَتْ يَا بُنَىَّ هَلْ غَابَ الْقَمَرُ قُلْتُ نَعَمْ ‏.‏ قَالَتِ ارْحَلْ بِي ‏.‏ فَارْتَحَلْنَا حَتَّى رَمَتِ الْجَمْرَةَ ثُمَّ صَلَّتْ فِي مَنْزِلِهَا فَقُلْتُ لَهَا أَىْ هَنْتَاهْ لَقَدْ غَلَّسْنَا ‏.‏ قَالَتْ كَلاَّ أَىْ بُنَىَّ إِنَّ النَّبِيَّ صلى الله عليه وسلم أَذِنَ لِلظُّعُنِ ‏.‏
Reference : Sahih Muslim 1291 a
In-book reference : Book 15, Hadith 326
USC-MSA web (English) reference : Book 7, Hadith 2962
  (deprecated numbering scheme)