Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: The Noble Prophet (peace and blessings be upon him) said: "When a person buys something which he has not seen, then when he sees it, he has the choice (if he wishes, he may cancel the transaction)." This narration is also transmitted from Sayyiduna Abu Hurairah (may Allah be pleased with him) through another chain. This narration is also transmitted from the Noble Prophet (peace and blessings be upon him) through some other chains, while some narrators have transmitted it as a mawquf narration up to Ibn Sirin, that is, as his own statement.

Sayyiduna Abdullah bin Umar and Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrate from the Noble Prophet (peace and blessings be upon him): He said, "When a person buys something, taking possession of it becomes obligatory for him, and he will have the option to cancel the deal until his companion separates from him. If he wishes, he may take possession of the item, and if he wishes, he may separate from his companion; after that, he will no longer have the option."

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: The Noble Prophet (peace and blessings be upon him) said: "When two men make a transaction, each of them has the option (to cancel it) as long as they have not separated from each other and are together, or until one of them gives the option to the other. When they make the transaction in this manner, then the transaction becomes binding."

The same narration is also transmitted with another chain from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) in a similar manner; however, it is regarding two transactions, and the narrator Ibn Wahb is unique in transmitting it.

Shaykh Abu Wasi narrates: We were participating in a military expedition, when a man came along with his horse. One of us said: "Will you sell this horse to him in exchange for this slave?" He said: "Yes!" Then he sold it to him. He stayed with us that night, and when morning came, he went towards his horse. Our companion said to him: "What do you have to do with this horse? Did you not sell it to me?" The man replied: "I do not want this transaction." Our companion said: "Now you have nothing to do with it, you have sold it to me." The people present there said to both of them: "Here is Abu Bardah, a companion of the Prophet (peace be upon him)." Both of them went to him, and Sayyiduna Abu Barzah said to them: "Are you both satisfied with the decision of the Prophet (peace be upon him) in this matter?" Both replied: "Yes!" Sayyiduna Abu Hurairah (may Allah be pleased with him) reported that the Prophet (peace be upon him) said: "The two parties involved in a transaction have the right to cancel it as long as they have not separated from each other." And as for you two, I think you have separated from each other.

Shaykh Abu Wasi narrates: We were participating in a battle, we camped at a place, a man from the army came to us and he was mounted on his horse, he made a deal for his horse with one of our companions. After that, the narrator has transmitted a similar narration from Sayyiduna Abu Barzah on the authority of the Prophet Muhammad (peace be upon him).

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: When we used to make a transaction with each other, both parties had the option (to cancel), as long as the two parties involved in the transaction had not separated from each other. Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: Once, I and Sayyiduna Uthman made a transaction; I sold my land, which was in the valley, for his land, which was in Khaybar. Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) says: When I sold it to him, after that I quickly turned back on my steps, fearing that before we separated, Sayyiduna Uthman might cancel the transaction.

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: The Noble Prophet (peace and blessings be upon him) said: "The truthful, trustworthy merchant will be with the martyrs." The narrator named Fadl has transmitted these words: "On the Day of Resurrection, he will be with the Prophets, the Siddiqin, and the martyrs."

Abu Sa'id al-Khudri (may Allah be pleased with him) reports: The Noble Prophet (peace and blessings be upon him) said: "The truthful and trustworthy merchant will be with the Prophets, the truthful ones, and the martyrs on the Day of Resurrection."

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates:“The price of wine is forbidden, the earnings of a prostitute are forbidden, the price of a dog is forbidden. If the owner of a dog comes to you and demands the price of his dog, then fill both his hands with dust, and if the owner of a dog comes to you and asks for the price of his dog, then fill both his hands with dust. Chess is forbidden, the price of a dog is forbidden, what is forbidden, the price of a dog is forbidden, intoxicants are forbidden, wine is forbidden.”