Abu Al-Minhal said: "I asked Al-Bara bin 'Azib about money exchange. He said: 'Ask Zaid bin Arqam, for he is better than me and more knowledgeable.' So I asked Zaid and he said: 'Ask Al-Bara for he is better than me and more knowledgeable.' And they both said: 'The Messenger of Allah (ﷺ) forbade (selling) silver for gold on credit."'

It was narrated that Ibn 'Umar said: "I used to sell camels at Al-Baqi and I would sell Dinars in exchange for Dirhams. I came to the Prophet (ﷺ) in the house of Hafsah and said: 'O Messenger of Allah, I want to ask you: I sell camels in Al-Baqi and I sell Dinars in exchange for Dirhams. He said: 'There is nothing wrong with it if you take the price on that day, unless you depart when there is still unfinished business between you both (buyer and seller)."'

It was narrated that Ibn 'Umar said: "I used to sell gold for silver, or silver for gold. I came to the Messenger of Allah (ﷺ) and told him about that, and he said: 'If you make a deal with your companion, d o not leave him when there is still any ambiguity (in the deal) between you."'

It was narrated from Ibrahim, with regard to exchanging Dirnars for Dirhams, that: he disliked it (this transaction) if it was done on credit. (Da 'if )

Something similar was narrated form Saeed bin Jubair. Abu 'Abdur-Rehman (An-Nasai) said: This is what I have found on this topic.

It was narrated that Ibn 'Umar said: "I came to the Prophet (ﷺ) and said: 'Wait, I want to ask you something. I sell camels in Al-Baqi with a price set in Dinars but I accept Dirhams instead.' He said: 'There is nothing wrong with it if you take the price on that day, still unfinished business between you both (buyer and seller)"'

It was narrated that Jabir said: "When the Prophet (ﷺ) came to Al-Madinah, he called for a scale and weighed (something) for me and gave me more."

It was narrated that Suwaid bin Qais said: "Makhrafah Al-Abdi and I brought some cloth from Hajar, and the Messenger of Allah (ﷺ) came to us while we were in Mina where there w a man who weighed (goods) in return for payment. He bought some trousers from us, and said to the man who weighed: 'Weigh it, and allow more."'

It was narrated that Ibn 'Umar said: "The Messenger of Allah (ﷺ) said: "Volume is to be measured according to the system of the people of Al-Madinah, and weight is to be measured according to the system of the peole of Makkah."' (Sahih) This is the wording of Ishaq (one of the narrators).

It was narrated that Tawus said: "I heard Ibn 'Abbas say: 'As for that which the Messenger of Allah (ﷺ) forbade, (it is) selling before taking possession of food."'

Hakim bin Hizam said: "I bought some food and made food and made a profit on it (by selling it) before I took possession of it. I came to the Messenger of Allah (ﷺ) and told him about that and he said: 'Do not sell it until you take possession of it."'

It was narrated from Salim that his father said: "I saw people being beaten (in punishment) at the time of the Messenger of Allah (ﷺ) for buying food unmeasured and selling it before bringing it to their own camp."

Ibn Abi Al-Mujalid-on one occasion he (the narrator) said 'Abdullah, and on another occasion he said Muhammad - said: "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 (ﷺ) 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.

It was narrated that Abu Al-Minhal said: "I heard Ibn 'Abbas say: 'When the Prophet (ﷺ) came (to al-Madinah), they used to pay in advance for dates, two or three years in advance. He forbade them that and said: 'whoever pays in advance for dates, let him pay for a known amount or a known weight, to be delivered at a known time'''

Irbad bin Saryah said: "I lent a young camel to the Messenger of Allah, and I came to ask him to repay me. He said: 'Yes, I will only repay you with a superior she-camel.' so he repaid me and repaid me well. Then a Bedouin came to him to ask to repay him a camel of a certain age, and the Messenger of Allah (ﷺ) said: 'Give him a camel of certain age.' On that day they gave him a mature camel and he said: 'This is better than my camel.' He (The Prophet) Said:' The best of you is the one who is best in repaying.'''

It was narrated from Ibn 'Abbas that the Propher said: "Paying in advance for the offspring of the offspring of a pregnant animal (Habal al-Habalah) is Riba''

It was narrated from Ibn 'Umar that: the Prophet (ﷺ) forbade selling the offspring of the offspring of a pregnant animal (Habal Al-Habalah)

It was narrated from Ibn 'Umar that: the Prophet (ﷺ) forbade selling the offspring of the offspring of a pregnant animal (Habal Al-Habalah)

It was narrated from Ibn 'Umar that: the Messenger of Allah (ﷺ) forbade selling the offspring of the offspring of a pregnant animal (Habal Al-Habalah), which was a transaction practiced by the people of the Jahiliyyah, whereby a man would buy camel to slaughter, but he would wait until the she-camel had produced offspring and the offspring in her belly had then produced offspring.

It was narrated that 'Aishah said: "The Messenger of Allah (ﷺ) was wearing two Qitri garments which, if he sat and sweated, would become heavy (and uncomfortable). A Jewish man got some fabric from Ash-sham so I said: 'Why don't you send word to him to buy two garments from him, and pay him when things get easier?' So he sent word to him, but he said: 'I know what Muhammad wants; he wants to go away with my money and take them (the two garments).' The Messenger of Allah (ﷺ) said; 'He is lying; he knows that I am one of the ones who fear Allah the most, and are most honest in fulfilling trusts.