Sunan Ibn Majah 31792

“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.”‘

Sunan Ibn Majah 31784

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.

Sunan Ibn Majah 31786

“Whoever sells fruits then the crop fails, should not take any of his brother’s money. Why would any of you take the money of his Muslim brother?”

Sunan Ibn Majah 31787

“Makhrafah Al’ Abdi and I brought linens from Hajar The Messenger of Allah (ﷺ) came to us to bargain with us with some trousers. There was someone with me who weighed (the goods) in exchange for a wage. So the Prophet (ﷺ) said to the one weighing: ‘Weigh and add more.’”

Sunan Ibn Majah 31781

“Do not sell fruits until they have ripened.” And he forbade (both) the seller and the purchaser (to engage in such a transaction).

Sunan Ibn Majah 31776

“Beware of swearing oaths when selling, for it may help you to make a sale but it destroys the blessing.”‘

Sunan Ibn Majah 31777

“Whoever buys a palm tree that has been pollinated, its fruits belong to the seller, unless the purchaser stipulated a condition.” (Sahih) Another chain from Ibn ‘Umar, from the Prophet (ﷺ), with similar wording.