كتاب الحج
15  
The Book of Pilgrimage
(59)
Chapter: It is recommended to halt at Al-Muhassab on the day of departing from Mina and to perform Zuhr and subsequent prayers there
(59)
باب اسْتِحْبَابِ النُّزُولِ بِالْمُحَصَّبِ يَوْمَ النَّفْرِ وَالصَّلاَةِ بِهِ ‏‏
Sahih Muslim 1310 b

Nafi' reported that Ibn 'Umar regarded halt at Muhassab as Sunnah (of the Holy Prophet) and observed the noon prayer on Yaum al-Nafr at that place. Nafi' said:

Allah's Messenger (ﷺ) halted at Muhassab and the Caliphs did the same after him.
حَدَّثَنِي مُحَمَّدُ بْنُ حَاتِمِ بْنِ مَيْمُونٍ، حَدَّثَنَا رَوْحُ بْنُ عُبَادَةَ، حَدَّثَنَا صَخْرُ بْنُ جُوَيْرِيَةَ، عَنْ نَافِعٍ، أَنَّ ابْنَ عُمَرَ، كَانَ يَرَى التَّحْصِيبَ سُنَّةً وَكَانَ يُصَلِّي الظُّهْرَ يَوْمَ النَّفْرِ بِالْحَصْبَةِ ‏.‏ قَالَ نَافِعٌ قَدْ حَصَّبَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَالْخُلَفَاءُ بَعْدَهُ ‏.‏
Reference : Sahih Muslim 1310b
In-book reference : Book 15, Hadith 372
USC-MSA web (English) reference : Book 7, Hadith 3007
  (deprecated numbering scheme)