حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ شَقِيقٍ، عَنْ قَيْسِ بْنِ أَبِي غَرَزَةَ، قَالَ كُنَّا نُسَمَّى فِي عَهْدِ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ السَّمَاسِرَةَ فَمَرَّ بِنَا رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ فَسَمَّانَا بِاسْمٍ هُوَ أَحْسَنُ مِنْهُ فَقَالَ ‏"‏ يَا مَعْشَرَ التُّجَّارِ إِنَّ الْبَيْعَ يَحْضُرُهُ الْحَلِفُ وَاللَّغْوُ فَشُوبُوهُ بِالصَّدَقَةِ ‏"‏ ‏.‏

It was narrated that Qais bin Abu Gharazah said: "At the time of the Messenger of Allah (PBUH) we used to be called brokers, but the Messenger of Allah (PBUH) passed by us and called by a name that was better than that. He said: 'O merchants, selling involves (false) oaths and idle talk, so mix some charity with it."' Translation Not Available

Book Ref: Sunan Ibn Majah Book 12 Hadith 2145
Web Ref:  Sunan Ibn Majah Vol 3 Book 12 Hadith 2145