حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ أَبِي وَائِلٍ، عَنْ قَيْسِ بْنِ أَبِي غَرَزَةَ، قَالَ كُنَّا فِي عَهْدِ رَسُولِ اللَّهِ صلى الله عليه وسلم نُسَمَّى السَّمَاسِرَةَ فَمَرَّ بِنَا رَسُولُ اللَّهِ صلى الله عليه وسلم فَسَمَّانَا بِاسْمٍ هُوَ أَحْسَنُ مِنْهُ فَقَالَ " يَا مَعْشَرَ التُّجَّارِ إِنَّ الْبَيْعَ يَحْضُرُهُ اللَّغْوُ وَالْحَلِفُ فَشُوبُوهُ بِالصَّدَقَةِ " .
Narrated Qays ibn AbuGharazah: In the time of the Messenger of Allah (PBUH) we used to be called brokers, but the Prophet (PBUH) came upon us one day, and called us by a better name than that, saying: O company of merchants, unprofitable speech and swearing takes place in business dealings, so mix it with sadaqah (alms). Translation Not Available
Book Ref: Sunan Abi Dawud Book 23 Hadith 3326
Web Ref: Sunan Abi Dawud Book 22 Hadith 3320