(147) باب الْمُحَصَّبِ
Narrated Ibn `Abbas:
Staying at Al-Mahassab is not one of the ceremonies (of Hajj), but Al-Mahassab is a place where Allah's Messenger (ﷺ) camped (during his Hajjat-al-Wida).
Reference: Sahih al-Bukhari 1766
In-book reference: Book 25, Hadith 242
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 26, Hadith 819