Abu Huraira (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Whoever buys a Musarrat (an animal whose udder has been withheld from milking), then he has a choice: if he wishes to keep it, he may keep it, and if he wishes to return it, he may return it along with a sa’ of dates, not of wheat."

Abu Huraira (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings be upon him) said: "Whoever buys a Musarrat (an animal whose milk has been retained in its udder), he has the option for three days; if he wishes to keep it, he may keep it, and if he wishes to return it, he may return it along with a sa' of dates, not wheat." Wahb says: By "Samra" is meant wheat.

Abdullah bin Umar (may Allah be pleased with them both) narrates that Hayan bin Munqidh had a wound on his head (because of which) his tongue would stammer, and he would often be deceived in buying and selling. So the Messenger of Allah (peace and blessings be upon him) gave him a three-day option in purchasing, and also said: "When you buy, say: Brother, there is to be no cheating or deception." I heard: he used to say 'La khadhabah, la khadhabah' (that is, he could not say 'La khilabah').

Sayyiduna Anas (may Allah be pleased with him) narrates that during the time of the Messenger of Allah (peace and blessings be upon him), there was an Ansari man who used to trade, but his speech was weak. The people of his tribe came to the Messenger of Allah (peace and blessings be upon him) and said: "O Messenger of Allah! Impose a restriction on such-and-such person, because he does trade, but his speech is weak." The Messenger of Allah (peace and blessings be upon him) called him and forbade him from selling. He said: "O Messenger of Allah! I cannot refrain from selling." So the Messenger of Allah (peace and blessings be upon him) said: "If you cannot refrain, then say like this: (The deal) will be cash and there will be no deception."

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said:“Who will buy this blanket and bowl?”A man said:“O Messenger of Allah! I will buy both these things for one dirham.”He said:“Who will give more than a dirham?”The people remained silent. The Noble Prophet (peace and blessings be upon him) again said:“Who will give more than a dirham?”A man said:“O Messenger of Allah! I will buy both these things for two dirhams.”He said:“They are yours.”

Zaid bin Aslam (may Allah have mercy on him) says that I heard from a man named Shahr, who was a trader. He asked Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) about auction sales (bidding). He (may Allah be pleased with them both) replied: "The Messenger of Allah (peace and blessings be upon him) forbade a man from making a deal over another's deal until he leaves it. Spoils of war and inheritances are exceptions to this."

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that it has been prohibited to go ahead and buy goods from caravan people (before they reach the market). If someone goes ahead and buys goods from the caravan people, then after coming to the market, the seller has the option (to annul the sale).

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) forbade buying goods from a trading caravan before it reached the market.

Sayyiduna Abu Hurairah (may Allah be pleased with him) reports that the Noble Prophet (peace and blessings of Allah be upon him) said: "No townsman should sell for a villager."

Sayyiduna Jabir (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings be upon him) said: "No townsman should sell for a villager; leave the people so that they may benefit from one another."