Nafie' نافع مولى ابن عمر · The Chapters on Business Transactions

"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."'

"The Messenger of Allah (ﷺ) was treated with cupping and he told me to give the cupper his wages."

the Prophet (ﷺ) was treated with cupping and gave the cupper his wages.

"There are three to whom Allah will not speak on the Day of Resurrection, nor will He look at them or purify them, and theirs will be a painful torment: A man who has surplus water in the desert but refuses to give any to a wayfarer; a man who sells a product to a man after 'Asr and swears by Allah that he bought it for such and such amount, and he believes him, when that is not the…

"When the Prophet (ﷺ) came to Al-Madinah, they were the worst people in weights and measures. Then Allah, Glorious is He revealed: "Woe to the Mutaffifun (those who give less in measure and weight)", and they were fair in weights and measures after that.

'(Sell) silver for silver, gold for gold, barley for barley, wheat for wheat, like for like."

"No one of you should milk from the livestock of another man without his permission. Would anyone of you like someone to break into his storeroom and take his food? The udders of their livestock store food for them, so none of you should milk the livestock of another man without his permission."