بُلُوغُ الْمَرَامِ
Bulugh al-Maram 448
The Book of Prayer
وَعَنْ جَابِرٍ { أَنَّ اَلنَّبِيَّ - صلى الله عليه وسلم -كَانَ يَخْطُبُ قَائِمًا, فَجَاءَتْ عِيرٌ مِنَ اَلشَّامِ, فَانْفَتَلَ اَلنَّاسُ إِلَيْهَا, حَتَّى لَمْ يَبْقَ إِلَّا اثْنَا عَشَرَ رَجُلًا } رَوَاهُ مُسْلِمٌ . [1] .
Narrated Jabir (RA): Allah's Messenger (ﷺ) was standing while delivering the Khutbah (religious talk, sermon) on Friday when a caravan from Syria arrived. The people flocked towards it till no one was left [with the Prophet (ﷺ)] except twelve men. [Reported by Muslim].
Sunnah.com reference: Book 2, Hadith 365