Sayyiduna Fadala bin Ubaid (may Allah be pleased with him) narrates: On the occasion of the Battle of Khaybar, a necklace was brought to the service of the Prophet (peace and blessings of Allah be upon him), which was overlaid with gold and also had precious stones attached to it. A man bought it for seven or perhaps nine dinars, so the Prophet (peace and blessings of Allah be upon him) said: "No, not until both of them are separated." So the man said: "Then I will take the stones." The Prophet (peace and blessings of Allah be upon him) said: "No, return it, until both of them (i.e., the stones and the gold) are separated."

Sayyiduna Fadala bin Ubaid (may Allah be pleased with him) narrates: A necklace was brought to the service of the Prophet (peace and blessings be upon him), which had gold and stones attached to it. So, by your order, the gold and stones were separated. Then you said: "Sell gold for gold in equal weight."

Abdullah bin Abbas (may Allah be pleased with them both) narrates: When the Prophet (peace and blessings be upon him) came to Madinah, people used to conduct Salam transactions in fruits. So he said: "Conduct Salam transactions in fruits for a specified quantity and a determined period." The narrator named Ibn Mahdi has transmitted these words: People used to conduct Salam transactions for two or three years, so the Prophet (peace and blessings be upon him) said: "Conduct Salam transactions for a specified measure and weight."

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: When the Noble Prophet (peace and blessings be upon him) arrived in Madinah, people used to conduct forward sales (salam) for one or two years. So he said:“Whoever wants to do a forward sale (salam), let him do so for a specified measure and a specified weight for a specified period.”These are the words of the narrator named Nishapuri. Muhali has narrated these words: They used to do forward sales regarding grain, dates, or date palms, so the Prophet said:“Do it for a specified period and sell a measured quantity.”

Abdullah bin Abbas (may Allah be pleased with them both) narrates: When the Prophet Muhammad (peace be upon him) came to Madinah, people used to make advance sales of dates for two or three years. So he said: "Whoever makes an advance sale should do so for a specified measure, a specified weight, and for a specified period."

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: When the Prophet Muhammad (peace be upon him) arrived in Madinah, people used to make deferred transactions for one or two years. So he said: "Whoever wants to make a deferred transaction of dates, let him do so for a specified measured amount or a specified weighed amount."

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: When the Prophet Muhammad (peace be upon him) arrived in Madinah, the people used to make advance sales of fruits for two or three years. So the Prophet Muhammad (peace be upon him) said: "Make advance sales for a specified measure and a specified weight for a specified period."

Makhool narrates this as a marfu’ hadith: The Prophet Muhammad (peace be upon him) said:“Whoever buys something which he has not seen, then he has the option, when he sees it, to either take it if he wishes or leave it if he wishes.”Abu al-Hasan (i.e., al-Daraqutni) says: This narration is mursal and its narrator Abu Bakr Maryam is weak.

This narration is also transmitted with another chain of transmission.

The same narration is also transmitted with another chain, however, in it the words are: Ibn Sirin narrates: When the thing does not correspond to the time that the person had stated before the buyer, even then the transaction will become binding.