Sahih
Muslim
صحيح مسلم
15
The Book of Pilgrimage
كتاب الحج
Chapter 48: It is recommended to pray Subh when it is still dark on the day of sacrifice in Al-Muzdalifah, and to do it very early after ascertaining that dawn has broken
باب اسْتِحْبَابِ زِيَادَةِ التَّغْلِيسِ بِصَلاَةِ الصُّبْحِ يَوْمَ النَّحْرِ بِالْمُزْدَلِفَةِ وَالْمُبَالَغَةِ فِيهِ بَعْدَ تَحَقُّقِ طُلُوعِ الْفَجْرِ
Sahih Muslim 1289 b
This hadith has been transmitted by Al-A`mash with a slight variation of words, i.e. he said before its time when it was still dark.
وَحَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ، جَمِيعًا عَنْ جَرِيرٍ، عَنِ الأَعْمَشِ، بِهَذَا الإِسْنَادِ وَقَالَ قَبْلَ وَقْتِهَا بِغَلَسٍ .
Grade: Sahih
