It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) that fresh and juicy dates were brought to the Messenger of Allah (peace and blessings be upon him), while his own dates were of the Barani type and had become dry. Therefore, the Prophet (peace and blessings be upon him) asked: "Where did these dates come from?" The people said: "We exchanged two sa' of our dates for one sa' of these dates." The Prophet (peace and blessings be upon him) said: "This transaction is not correct. First, sell your own dates separately, then fulfill your need for this type with the price you get."

Narrated by Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him): He said, "During the time of the Prophet (peace and blessings of Allah be upon him), we used to be given mixed dates, so we would give two sa' of them to buy one sa' of good dates. But when this reached the Prophet (peace and blessings of Allah be upon him), he said: 'Two sa' of dates for one sa' is not allowed, nor two sa' of wheat for one sa', nor two dirhams of silver for one dirham.'"

Narrated by Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) distributed among them such grain that some of it was better than the other. Because of this, we began to sell it among ourselves with an increase and decrease, but the Messenger of Allah (peace and blessings be upon him) forbade us from making such a sale, except that it should be equal in measure and there should be no excess on either side.

It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with both of them) that the Messenger of Allah (peace and blessings be upon him) forbade selling an animal for another animal on credit, that is, exchanging one animal for two animals on deferred payment. If it is cash for cash, then there is no harm in it.

It is narrated from Sayyiduna Jabir bin Samurah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) forbade trading one animal for another on credit.

Sayyiduna Samurah bin Jundub (may Allah be pleased with him) has also narrated a similar tradition.

It is narrated from Sayyiduna Anas (may Allah be pleased with him) that Sayyidah Safiyyah (may Allah be pleased with her) came into the share of Sayyiduna Dihyah Kalbi (may Allah be pleased with him). Someone said: O Messenger of Allah! A beautiful slave girl has come into the share of Sayyiduna Dihyah (may Allah be pleased with him). Then the Messenger of Allah (peace and blessings be upon him) bought her in exchange for seven individuals.

Umar bin Harish says: I asked Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with them both) that we are in a place where there is neither dinar nor dirham, so we do transactions of camels and goats on credit for a certain period; what is your opinion about this? Sayyiduna Abdullah (may Allah be pleased with him) said: You have asked a knowledgeable person about this issue. The matter is that the Messenger of Allah (peace and blessings be upon him) prepared an army from the camels of charity, but the preparation was not yet complete when the camels ran out, while the people's need still remained. The Messenger of Allah (peace and blessings be upon him) said to me: Buy camels for us in exchange for the charity she-camels; when they become available, we will pay the owners. Then I bought one camel in exchange for two or three she-camels, until the number was completed. Then, when the charity camels arrived, the Messenger of Allah (peace and blessings be upon him) paid them.