Abdur-Razzaq عبد الرزاق بن همام · The Chapters on Business Transactions

"The Messenger of Allah (ﷺ) forbade. meeting the owners of goods (away from the market)."

"I came to the Messenger of Allah (ﷺ), during one of his 'Umrah at Marwah and said: 'O Messenger of Allah, I am a woman who buys and sells. When I want to buy something, I state a price less than I want to pay, then I raise it gradually until it reaches the price I want to pay. And when I want to sell something, I state a price more than I want, then I lower it until it…

"I was with the Prophet (ﷺ) on a military campaign, and he said to me: 'Will you sell this camel of yours for a Dinar?' I said: 'O Messenger of Allah, it is yours when I get to Al-Madinah.' He said: 'Then sell it for two Dinar, may Allah forgive you.' And he kept increasing the price for me, saying: 'May Allah forgive you,' each time, until the amount reached twenty Dinar. When I came to Al-Madinah, I took hold…

"I saw the Messenger of Allah (ﷺ) pass by a man having food in a vessel. He put his hand in it and said: 'Perhaps you are cheating. Whoever cheats us is not one of us."'