Sahih Muslim Book - 7, Hadith - 2000

وَحَدَّثَنَا إِسْمَاعِيلُ بْنُ سَالِمٍ أَخْبَرَنَا هُشَيْمٌ أَخْبَرَنَا حُصَيْنٌ عَنْ أَبِى سُفْيَانَ وَسَالِمِ بْنِ أَبِى الْجَعْدِ عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ قَالَ بَيْنَا النَّبِىُّ -صلى الله عليه وسلم- قَائِمٌ يَوْمَ الْجُمُعَةِ إِذْ قَدِمَتْ عِيرٌ إِلَى الْمَدِينَةِ فَابْتَدَرَهَا أَصْحَابُ رَسُولِ اللَّهِ -صلى الله عليه وسلم- حَتَّى لَمْ يَبْقَ مَعَهُ إِلاَّ اثْنَا عَشَرَ رَجُلاً فِيهِمْ أَبُو بَكْرٍ وَعُمَرُ - قَالَ - وَنَزَلَتْ هَذِهِ الآيَةُ (وَإِذَا رَأَوْا تِجَارَةً أَوْ لَهْوًا انْفَضُّوا إِلَيْهَا)

It was narrated that Jabir bin 'Abdullah said: While the Prophet (s.a.w) was standing on a Friday, a caravan arrived in Al-Madinah and the Companions of the Messenger of Allah (s.a.w) rushed towards it, until there was no one left with him except twelve men, among whom were Abu Bakr and 'Umar. Then this verse was revealed: "And when they see some merchandise or some amusement they disperse headlong to it, and leave you standing."