It was narrated that Qais bin Abu Gharazah said:
"At the time of the Messenger of Allah (ﷺ) we used to be called brokers, but the Messenger of Allah (ﷺ) 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."'
English reference: Vol. 3, Book 12, Hadith 2145
Arabic reference: Book 12, Hadith 2228