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) said: When you buy any grain, do not sell it further before taking possession of it.

Narrated by Sayyiduna Hakim bin Hizam (may Allah be pleased with him), he says: I said, "O Messenger of Allah! When I buy some things, which of them are lawful for me and which are unlawful?" The Prophet (peace and blessings be upon him) said: "When you buy something, do not sell it further until you have taken possession of it."

Narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both), he says: A man from Syria came with oil, and the traders began to bargain with him. I was also among them and I bought from him. At that place, another man came forward to buy, he offered me a reasonable profit and persuaded me to make the deal. So I took his hand in order to strike my hand on his (to finalize the deal), but meanwhile someone grabbed my arm from behind. When I turned around, it was Sayyiduna Zaid bin Thabit (may Allah be pleased with him). He said: Whenever you buy something, take it to your house before selling it further, because the Messenger of Allah (peace and blessings be upon him) has forbidden this. So I withheld my hand.

It is narrated from Sulayman bin Yasar that some traders who had checks went out and sought permission from Marwan to sell those checks. He granted them permission. In the meantime, Sayyiduna Abu Hurairah (may Allah be pleased with him) arrived at Marwan's place and said: "You have permitted the traders to buy and sell with interest. The Messenger of Allah (peace and blessings be upon him) forbade this, that grain should not be sold before it is fully taken into possession after purchase." Upon hearing this, Marwan sent his guards, and they began to snatch the checks from the hands of those people who were not facing hardship.

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both), he says: During the time of the Prophet (peace and blessings be upon him), we used to buy grain, and the Prophet (peace and blessings be upon him) would send a man to us who would instruct us that the grain which you have bought at this place, before selling it, take it to another place.

Narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: Whoever buys grain by measure or weight should not sell it until he has taken full possession of it.

Salim narrates from his father, Sayyiduna Abdullah bin Umar (may Allah be pleased with them), who says that those people who used to buy grain by estimation during the Prophetic era were punished for starting to sell it at the same place, (and it was ordered) that they should first transfer it to their homes.

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that people used to buy and sell grain in the upper part of the market without measuring it. The Messenger of Allah (peace and blessings be upon him) forbade selling that grain further without transferring it from there.

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) forbade a man from buying grain and then starting to sell it before taking full possession of it. Tawus says: I asked, how does this happen? He said: This becomes a sale of dirham for dirham, and the grain is left behind.

(Second chain) Sayyiduna Ibn Abbas (may Allah be pleased with them) says: The thing which the Messenger of Allah (peace and blessings be upon him) forbade to sell before taking possession of it is grain, but I think that the ruling for every item is like that of grain.