"I never saw the Messenger of Allah ﷺ combine any two prayers except in Al-Muzdalifah, and on that day he prayed Subh before its time." (Using translation from Nasāʾī 608)
«مَا رَأَيْتُ النَّبِيَّ ﷺ جَمَعَ بَيْنَ صَلَاتَيْنِ إِلَّا بِجَمْعٍ وَصَلَّى الصُّبْحَ يَوْمَئِذٍ قَبْلَ وَقْتِهَا»
"I never saw the Messenger of Allah ﷺ combine any two prayers except in Al-Muzdalifah, and on that day he prayed Subh before its time."
مَا رَأَيْتُ النَّبِيَّ ﷺ جَمَعَ بَيْنَ صَلاَتَيْنِ إِلاَّ بِجَمْعٍ وَصَلَّى الصُّبْحَ يَوْمَئِذٍ قَبْلَ وَقْتِهَا
Ibn Mas’ud said “ I never saw the Apostle of Allaah ﷺ observe a prayer out of its proper time except(two prayers) at Al Muzdalifah. He combined the sunset and night prayers at Al Muzdalifah and he offered the dawn prayer that day before its proper time. (Using translation from Abū Dāʾūd 1934)
مَا رَأَيْتُ رَسُولَ اللهِ ﷺ صَلَّى صَلَاةً إِلَّا لِمِيقَاتِهَا إِلَّا أَنَّهُ جَمَعَ بَيْنَ الْمَغْرِبِ وَالْعِشَاءِ بِجَمْعٍ وَصَلَّى الصُّبْحَ يَوْمَئِذٍ لِغَيْرِ مِيقَاتِهَا