Commercial Transactions (Kitab Al-Buyu)

Dawud :: Book 22 : Hadith 3320

Narrated Qays ibn AbuGharazah:

In the time of the Apostle of Allah (peace_be_upon_him) we used to be called brokers, but the Prophet (peace_be_upon_him) 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).