ENOfficial
Jafar bin Muahammad narrated that his father said: "We came to Jabir bin Abdullah and he told us that the Messenger of Allah (ﷺ) said: 'All of Al Muzdalifah is a place for (the pilgrims) to stand.'"
Source: sunnah.com
Other translations
Arabic
أَخْبَرَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا جَعْفَرُ بْنُ مُحَمَّدٍ، قَالَ حَدَّثَنَا أَبِي قَالَ، أَتَيْنَا جَابِرَ بْنَ عَبْدِ اللَّهِ فَحَدَّثَنَا أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " الْمُزْدَلِفَةُ كُلُّهَا مَوْقِفٌ " .
sunnah.com