The Messenger of Allah (ﷺ) as saying: Delay in payment (of debt) by a rich man is injunctive, but when one of you is referred to a wealthy man, he should accept the reference.

The Messenger of Allah (ﷺ) borrowed a young camel, and when the camels of the sadaqah (alms) came to him, he ordered me to pay the man his young camel. I said: I find only an excellent camel in its seventh year. So the Prophet (ﷺ) said: Give it to him, for the best person is he who discharges his debt in the best manner.

The Prophet (ﷺ) owed me a debt and gave me something extra when he paid it.

The Messenger of Allah (ﷺ) as saying: Gold for gold is interest unless both hand over on the spot ; wheat for wheat is interest unless both hand over on the spot ; dates for dates is interest unless both hand over on the spot ; barley for barley is interest unless both hand over on the spot.

The Messenger of Allah (ﷺ) said: Gold is to be paid for with gold, raw and coined, silver with silver, raw and coined (in equal weight), wheat with wheat in equal measure, barley with barley in equal measure, dates with dates in equal measure, salt by salt with equal measure; if anyone gives more or asks more, he has dealt in usury. But there is no harm in selling gold for silver and silver (for gold), in unequal weight, payment being made on the spot. Do not sell them if they are to be paid for later. There is no harm in selling wheat for barley and barley (for wheat) in unequal measure, payment being made on the spot. If the payment is to be made later, then do not sell them.

Abu Dawud said: This tradition has also been transmitted by Sa'id b. Abi 'Arubah, Hisham al-Dastawa'i and Qatadah from Muslim b. Yasar through his chain.

"He said: If these classes differ, sell as you wish if payment is made on the spot."

The Prophet (ﷺ) was brought a necklace in which there were gold and pearls.

(The narrators AbuBakr and (Ahmad) Ibn Mani' said: The pearls were set with gold in it, and a man bought it for nine or seven dinars.)

The Prophet (ﷺ) said: (It must not be sold) till the contents are considered separately. The narrator said: He returned it till the contents were considered separately. The narrator Ibn Asa said: By this I intended trade.

Abu Dawud said: The word hijarah (stone) was recorded in his note-book before, but he changed it and narrated tijarah (trade).

At the battle of Khaibar I bought a necklace in which there were gold and pearls for twelve dinars. I separated them and found that its worth was more than twelve dinars. So I mentioned that to the Prophet (ﷺ) who said: It must not be sold till the contents are considered separately.

We were with the Messenger of Allah (ﷺ) at the battle of Khaibar. We were selling to the Jews one uqiyah of gold for one dinar. The narrators other than Qutaibah said: "for two or three dinars." Then both the versions agreed. The Messenger of Allah (ﷺ) said: Do not sell gold except with equal weight.

I used to sell camels at al-Baqi for dinars and take dirhams for them, and sell for dirhams and take dinars for them. I would take these for these and give these for these. I went to the Messenger of Allah (ﷺ) who was in the house of Hafsah. I said: Messenger of Allah , take it easy, I shall ask you (a question): I sell camels at al-Baqi'. I sell (them) for dinars and take dirhams and I sell for dirhams and take dinars. I take these for these, and give these for these. The Messenger of Allah (ﷺ) then said: There is no harm in taking them at the current rate so long as you do not separate leaving something to be settled.

The tradition mentioned above has also been transmitted by Simak (b. Harb) with a different chain of narrators and to the same effect. The first version is more perfect. It does not mention the words "at the current rate".

The Prophet (ﷺ) forbade selling animals for animals when payment was to be made at a later date.

The Messenger of Allah (ﷺ) commanded him to equip an army, but the camels were insufficient. So he commanded him to keep back the young camels of sadaqah, and he was taking a camel to be replaced by two when the camels of sadaqah came.

The Prophet (ﷺ) bought a slave for two slaves.

Abu Dawud said: A similar tradition has also been transmitted by Isma'il b. Umayyah.

The Messenger of Allah (ﷺ) forbade to sell fresh dates for dry dates when payment is made at a later date.

Abu Dawud said: The tradition mentioned above has also been transmitted by Sa'd (b. Abi Waqqas) from the Prophet (ﷺ) through a different chain of narrators in a similar way.

The Prophet (ﷺ) forbade the sale of fruits on the tree for fruits by measure, and sale of grapes for raisins by measure, and sale of harvest for wheat by measure.

The Prophet (ﷺ) gave license for the sale of 'araya for dried dates and fresh dates.

The Messenger of Allah (ﷺ) forbade the sale of fruits for dried dates, but gave license regarding the 'araya for its sale on the basis of a calculation of their amount. But those who buy them can eat them when fresh.

The Messenger of Allah (ﷺ) gave license regarding the sale of 'araya when the amount was less then five wasqs or five wasqs. Dawud b. al-Husain was doubtful.

Abu Dawud said: The tradition by Jabir indicates up to four wasqs.