Chapter 13: The Chapters on Business Transactions
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."'
Sunan Ibn Majah 2145