The Book of Pilgrimage
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 .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
From Sahih Muslim, whose reports the scholars accept as authentic.