Ubaidullah b. 'Abdullah b. 'Umar reported on the authority of his father (Allah be pleased with them) that Allah's Messenger (ﷺ) combined the sunset and 'Isha', prayers at Muzdalifa and there was no prostration (i. e. any rak'ahs of Sunan or Nawafil prayers) in between them. He observed three rak'ahs of the sunset prayer and two rak'ahs of the 'Isha' prayer, and 'Abdullah (b. 'Umar) observed the prayers in this very manner (at Muzdalifa) until he met his Lord.
Sa'id b. Jubair reported that he observed the sunset and 'Isha' prayers at Muzdalifa with (one) iqama. He narrated on the authority of Ibn 'Umar (Allah be pleased with them) that he observed prayers like this and Ibn 'Umar (Allah be pleased with them) narrated that Allah's Apostle (ﷺ) did like this.
وَحَدَّثَنَا عَبْدُ بْنُ حُمَيْدٍ، أَخْبَرَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا الثَّوْرِيُّ، عَنْ سَلَمَةَ بْنِ كُهَيْلٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عُمَرَ، قَالَ جَمَعَ رَسُولُ اللَّهِ صلى الله عليه وسلم بَيْنَ الْمَغْرِبِ وَالْعِشَاءِ بِجَمْعٍ صَلَّى الْمَغْرِبَ ثَلاَثًا وَالْعِشَاءَ رَكْعَتَيْنِ بِإِقَامَةٍ وَاحِدَةٍ .
Ibn 'Umar rep rte that Allah's Messenger (ﷺ) combined the sunset and 'Isha ' prayers at Muzdalifa. He observed three rak'ahs of the sunset prayer and two rak'ahs of the 'Isha' prayer with one Iqama.
We came back along with Ibn 'Umar till we reached Muzdalifa. There he led us in the sunset and 'Isha' prayers with one iqama and we then proceeded and he said: This is how Allah's Messenger (ﷺ) led us in prayer at this place.
I have never seen Allah's Messenger, (ﷺ) but observing the prayers at their appointed times except two prayers, sunset and 'Isha, ' at Muzdalifa (where he deferred the sunset prayer to combine it with 'Isha' and he observed the dawn prayer before its stipulated time on that day (10th of Dhu'l-Hijja).
وَحَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ بْنِ قَعْنَبٍ، حَدَّثَنَا أَفْلَحُ، - يَعْنِي ابْنَ حُمَيْدٍ - عَنِ الْقَاسِمِ، عَنْ عَائِشَةَ، أَنَّهَا قَالَتِ اسْتَأْذَنَتْ سَوْدَةُ رَسُولَ اللَّهِ صلى الله عليه وسلم لَيْلَةَ الْمُزْدَلِفَةِ تَدْفَعُ قَبْلَهُ وَقَبْلَ حَطْمَةِ النَّاسِ وَكَانَتِ امْرَأَةً ثَبِطَةً - يَقُولُ الْقَاسِمُ وَالثَّبِطَةُ الثَّقِيلَةُ - قَالَ فَأَذِنَ لَهَا فَخَرَجَتْ قَبْلَ دَفْعِهِ وَحَبَسَنَا حَتَّى أَصْبَحْنَا فَدَفَعْنَا بِدَفْعِهِ وَلأَنْ أَكُونَ اسْتَأْذَنْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم كَمَا اسْتَأْذَنَتْهُ سَوْدَةُ فَأَكُونَ أَدْفَعُ بِإِذْنِهِ أَحَبُّ إِلَىَّ مِنْ مَفْرُوحٍ بِهِ .
Sauda (the wife of the Holy Prophet) who was bulky sought the permission of Allah's Messenger (ﷺ) on the night of Muzdalifa to move from (that place) ahead of him and before the multitude (set forth). He (Allah's Apostle) gave her the permission. So she set forth before his (Holy Prophet's) departure. But we stayed there until it was dawn and we moved on, when he departed. And if I were to seek the permission of Allah's Messenger. (ﷺ) as Sauda had sought permission, I could have also gone with his permission and it would have been better for me than that for which I was happy.
وَحَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ عُمَرَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ الْقَاسِمِ، عَنِ الْقَاسِمِ، عَنْ عَائِشَةَ، قَالَتْ وَدِدْتُ أَنِّي كُنْتُ اسْتَأْذَنْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم كَمَا اسْتَأْذَنَتْهُ سَوْدَةُ فَأُصَلِّي الصُّبْحَ بِمِنًى فَأَرْمِي الْجَمْرَةَ قَبْلَ أَنْ يَأْتِيَ النَّاسُ . فَقِيلَ لِعَائِشَةَ فَكَانَتْ سَوْدَةُ اسْتَأْذَنَتْهُ قَالَتْ نَعَمْ إِنَّهَا كَانَتِ امْرَأَةً ثَقِيلَةً ثَبِطَةً فَاسْتَأْذَنَتْ رَسُولَ اللَّهِ صلى الله عليه وسلم فَأَذِنَ لَهَا .
I wish I had sought permission from Allah's Messenger (ﷺ) as Sauda had sought, and observed the dawn prayer at Mina and stoned at al-Jamra before the people had come there. It was said to 'A'isha (Allah be pleased with her): Did Sauda seek permission from him (the Holy Prophet)? She said: Yes. She was a bulky lady and so she sought permission from Allah's Messenger (ﷺ) (to proceed to mina from Muzdalifa ahead of him), and he granted her permission.