The Book of Transactions
كتاب البيوع
Chapter 4: The prohibition of urging a buyer to cancel a purchase in order to sell him one's own goods; And urging a seller to cancel a sale already agreed upon so that one can buy the goods oneself; And the prohibition of artificially inflating prices; And the prohibition of letting milk accumulate in the udder in order to deceive the purchaser
One amongst you should not enter into a transaction when another is bargaining.
This hadith has been narrated on the authority of Abu Huraira through another chain of transmitters but with a slight change of words.
Chapter 6: The prohibition of the town-dweller selling on behalf of a bedouin
Jabir (Allah be pleased with him) reported a similar hadith from Allah's Apostle (ﷺ) through another chain of transmitters.
Chapter 1: The invalidity of Mulamasah and Munabadhah transactions
Abu Huraira reported from Allah's Messenger (ﷺ) a hadith like this through another chain cf transmitters.
Chapter 3: The prohibition of selling Habl Al-Habalah
Ibn 'Umar (Allah be pleased with them) reported that the people of pre-Islamic days used to sell the meat of the slaughtered camel up to habal al-habala. And habal al-habala implies that a she-camel should give birth and then the (born one should grow young) and become pregnant. Allah's Messenger (ﷺ) forbade them that (this transaction).
Chapter 4: The prohibition of urging a buyer to cancel a purchase in order to sell him one's own goods; And urging a seller to cancel a sale already agreed upon so that one can buy the goods oneself; And the prohibition of artificially inflating prices; And the prohibition of letting milk accumulate in the udder in order to deceive the purchaser
A Muslim should not purchase (in opposition) to his brother.
Ibn Umar (Allah be pleased with them) reported that Allah's Messenger (ﷺ) forbade the outbidding (against another).
Chapter 5: The prohibition of intercepting traders
Do not meet the merchandise (in the way).
Do not meet the merchant in the way and enter into business transaction with him, and whoever meets him and buys from him (and in case it is done, see) that when the owner of (merchandise) comes into the market (and finds that he has been paid less price) he has the option (to declare the transaction null and void).
Chapter 7: Ruling on selling Al-Musarrah (An animal in whose udder milk has been allowed to accumulate)
He who buys a goat with its udder tied up has the option to retain the goat if he so desires or return it within three days, and in case he returns it he should do so along with a sa' of dates.
lie who buys a goat having its udder tied up has the option to return it within three days. If he returns it he should pay a sa' of dates. Wheat is not essential.
Chapter 8: It is invalid to sell goods before taking possession of them
He who buys foodgrain should not sell it, until he has weighed it (and then taken possession of it). I (Tawus) said to Ibn Abbas (Allah be pleased with them): Why is it so? Thereupon he said: Don't you see that they (the people) sell foodgrains against gold for the stipulated time. Abu Kuraib did not make any mention of the stipulated time.
He who bought foodgrain should not sell it until he had taken full possession of it (after measuring it).
He who bought foodgrain should not sell it until he had taken possession of it.
Chapter 9: The prohibition of selling a heap of dates the weight of which is unknown
This hadith is narrated on the authority of Jabir b. Abdullah (Allah be pleased with them) but with this variation that no mention is made of the dates (which one finds) at the end of the previous hadith.
Chapter 12: One who is deceived in transactions
There should be no attempt to deceive."
Chapter 13: The prohibition of selling produce before its goodness appears
Ibn 'Umar (Allah be pleased with them) reported that Allah's Messenger (ﷺ) forbade the sale of fruits until they were clearly in good condition, he forbade it both to the seller and to the buyer.
Nafi, reported on the authority of Ibn Umar (Allah be pleased with them) a hadith like that narrated before.