Jabir reported God's Messenger as saying, “God show mercy to a man who is kindly when he sells, when he buys, and when he makes a claim!” Bukhari transmitted it.

Abu Qatada reported God’s Messenger as saying, “Avoid much swearing while transacting business, for it produces a ready sale then blots out the blessing.” Muslim transmitted it.

Abu Dharr reported the Prophet (ﷺ) as saying, “There are three to whom God will not speak on the day of resurrection, at whom He will not look, and whom He will not declare pure, and they will have a painful punishment.” Abu Dharr said, “They are losers and disappointed. Who are they, Messenger of God?” He replied, “The one who wears a trailing robe, the one who takes account of what he gives*, and the one who produces a ready sale of a commodity by false swearing.” Muslim transmitted it. * This is the type of person who keeps reminding people of his generosity to them.

Aba Sa‘id reported God's Messenger as saying, "The truthful and trusty merchant is associated with the prophets, the upright, and the martyrs." Tirmidhi, Darimi and Daraqutni transmitted it, and Ibn Majah transmitted it on the authority of Ibn ‘Umar. Tirmidhi said this is a gharib tradition.

Qais b. Abu Gharaza said : In the time of God's Messenger we used to be called brokers, but God’s Messenger came upon us one day and called us by a better name than that, saying, "Company of merchants, unprofitable speech and swearing have a place in business dealing, so mix it with sadaqa. Abu Dawud, Tirmidhi, Nasa’i and Ibn Majah transmitted it.

‘Ubaid b. Rifa'a on his father’s authority reported the Prophet (ﷺ) as saying, "The merchants will be raised up on the day of resurrection as evildoers, except those who fear God, are honest and speak the truth.” Tirmidhi, Ibn Majah and Darimi transmitted it, and Baihaqi transmitted it in Shu'ab al-iman on the authority of al-Bara’. Tirmidhi said this is a hasan sahih tradition.

'Amr b. Shu'aib, on his father's authority, said that his grandfather reported God’s Messenger as saying, “Both parties in a business transaction have a right to annul it so long as they have not separated unless it is a bargain with the right to annul it attached to it; and one has not the right to separate from the other for fear that he may demand that the bargain be rescinded.” Tirmidhi, Abu Dawud and Nasa’i transmitted it.

Abu Huraira reported the Prophet (ﷺ) as saying, “Two people must separate only by mutual consent.” Abu Dawud transmitted it.

Jabir told that God’s Messenger gave a desert Arab the right to rescind a bargain after having made it. Tirmidhi transmitted it, saying this is a hasan sahih gharib tradition.

Jabir said that God's Messenger cursed the one who accepted usury, the one who paid it, the one who recorded it, and the two witnesses to it, saying they were all alike. Muslim transmitted it.

‘Ubada b. as-Samit reported God's Messenger as saying, "Gold is to be paid for by gold, silver by silver, wheat by wheat, barley by barley, dates by dates, and salt by salt, like for like and equal for equal, payment being made on the spot. If these classes differ, sell as you wish if payment is made on the spot.” Muslim transmitted it.

Abu Sa'id al-Khudri reported God’s Messenger as saying, "Gold is to be paid for by gold, silver by silver, wheat by wheat, barley by barley, dates by dates, and salt by salt, like for like, payment being made on the spot. If anyone gives more or asks more he has dealt in usury. The receiver and the giver are equally guilty.” Muslim transmitted it.

Ma'mar b. Abdallah told that he used to hear God’s Messenger say, "Food for food, like for like.” Muslim transmitted it.

Jabir told that a slave came and swore allegiance to the Prophet (ﷺ) promising to emigrate, but he did not know that he was a slave. When his master came in search of him the Prophet (ﷺ) said to him, ‘Sell him to me," and he bought him for two black slaves. Afterwards he never took an oath of allegiance from anyone without asking him whether he was a slave or free. Muslim transmitted it.

He said that God’s Messenger forbade selling a quantity of dates whose measure was unknown for a specific quantity of dates. Muslim transmitted it.

Fadala b. 'Ubaid* said that at the battle for Khaibar he had bought a necklace in which there were gold and gems for twelve dinars, and after considering them separately he found that it was worth more than twelve dinars, so he mentioned that to the Prophet (ﷺ) who said, "It must not be sold till the contents are considered separately." Muslim transmitted it. * The Damascus edition, iii, 308 and Mirqat, iii, 311 wrongly give Abu 'Ubaid, but in the commentary Mirqat gives the name correctly as Fadala b. 'Ubaid.

‘Ubada b. as-Samit reported God’s Messenger as saying, “Do not sell gold for gold, or silver for silver, or wheat for wheat, or barley for barley, or dates for dates, or salt for salt except equal for equal, kind for kind, payment being made on the spot; but sell gold for silver, silver for gold, wheat for barely, barley for wheat, dates for salt and salt for dates, payment being made on the spot, as you wish.” Shafi'i transmitted it.

Sa'd b. Abu Waqqas said he heard God's Messenger being asked about buying dry dates for fresh and asking whether the fresh dates were diminished when they became dry. On being told that they were, he forbade that. Malik, Tirmidhi, Abu Dawud, Nasa’i and Ibn Majah transmitted it.

Sa'id b. al-Musayyib told in mursal form that God’s Messenger forbade the sale of meat for animals1. Sa'id said it was connected with the maisir2 of the people of pre-Islamic times. It is transmitted in Sharh as-sunna. 1. i.e. meat sold in exchange for living animals. 2. A game of chance played with arrows for parts of a camel. The type of transaction mentioned in the tradition is evidently considered to contain something in the nature of a gamble.

Samura b. Jundub told that the Prophet, forbade selling animal for animals when payment was to be made at a later date. Tirmidhi, Abu Da.wud, Nasa’i, Ibn Majah and Darimi transmitted it.