Muhammad bin Salmah محمد بن سلمة بن عبد الله الباهلي · The Book of Financial Transactions

"The Messenger of Allah said: "There will come a time when there will be no one left who does not consume Riba, and whoever does not consume it will nevertheless be affected by residue." (Sahih )

"The Messenger of Allah (ﷺ) forbade meeting traders on the way, until one enters the market with them?" Abu Usamah acknowledged it and said: Yes.

"The Messenger of Allah forbade two kinds of garments, and he forbade two kinds of transactions for us: Munabadhah and Mulamasah, which are kinds of transactions which were common during the Jahiliyyah."

Rafi bin Khadij and Sahl Bi Abi Hathamah narrated that the Messenger of Allah forbade Muzabanah, which means selling fresh dates still on the tree for dried dates, except in cases of 'Araya, for which he gave permission. (Sahih

he did not see anything wrong with parying Dirhams for Dinars.

he disliked it (this transaction) if it was done on credit. (Da 'if )

"The Messenger of Allah said: 'Whoever buys food, let him not sell it until he has taken possession of it."'

"Abu Burdah and 'Abdullah bin Shaddad argued about payment in advance. They sent me to Ibn Abi Awfa and I asked him (about that). He said: 'We used to pay in advance during the time of the Messenger of Allah and Abu Bakr and 'Umar, for wheat, barley, raisins and dates, paying people whom we did not see it with them." And I asked Ibn Abza and he said something similar to that.

"A man has more right to his own wealth when he finds it, and the buyer should pursue the one who sold it to him."

"The Messenger of Allah ruled that pre-emption is to be given in everything that is shared in which the division is not clear, whether it is a house or a garden. It is not permissible to sell it before informing one's partner, who may take it or leave it, as he wishes. He (the share-owner) sells it without informing him, and then he has more right to it."