ibn Mas'ud · The Chapters on Business Transactions

Be moderate in seeking worldly things, for everyone will be facilitated for which he was created."

"The Messenger of Allah (ﷺ) forbade meeting traders on the way."

the Messenger of Allah (ﷺ) forbade selling fruits until they have changed the color, and selling grapes until they have turned black, and selling grains until they have hardened.

"I heard the Messenger of Allah (ﷺ) say: 'Measure your food, may you be blessed therein."'

the Messenger of Allah (ﷺ) went to the market of Nabit, and looked at it, and said: "This is not a market for you." Then we went to another market and looked at it, and said: "This is not a market for you." Then he came back to this market and walked around in it then he said: "This is your market. It will always be your market and no duty will be levied on it." (Do,if)