Abu Malik al-Ash‘ari reported Allah's Messenger ﷺ as saying, “Being purified is half of faith, saying ‘Praise be to Allah’ fills the scale, saying ‘Glory be to Allah’ and ‘Praise be to Allah' fill or fills* the space between the heavens and the earth, prayer is a light, sadaqa is a proof [of sincere faith], endurance is a shining glory, and the Qur’an is a proof on your behalf or against you. All men go out early and sell themselves, thereby setting themselves free or destroying themselves.” *An alternative reading is given in the text, the first feminine dual and the second feminine singular. Muslim transmitted it. A version has, “Saying ‘There is no Allah but Allah’ and ‘Allah is most great’ fills the space between heaven and earth.” I did not find this version in the two Sahihs, in al-Humaidi's book [Al-jam' bain as-sahihain], or in the Jami [ibn al-Athir’s Jami' al-usul] but Darimi mentioned it in place of “Glory be to Allah and Praise be to Allah.”

He reported Allah's Messenger ﷺ as saying, "Do not sell gold for gold unless it is like for like, and do not make one amount greater than the other; do not sell silver for silver unless it is like for like, and do not make one amount greater than the other; and do not sell for ready money something to be given later*.” A version has, "Do not sell gold for gold or silver for silver unless both are of equal weight.” (Bukhari and Muslim.) * Payment is not to be made till the goods are received.

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

‘Umar reported Allah's Messenger ﷺ as saying, "Gold for gold is usury unless both hand over on the spot*; silver for silver is usury unless both hand over on the spot; wheat for wheat is usury unless both hand over on the spot; barley for barley is usury unless both hand over on the spot; dates for dates is usury unless both hand over on the spot." (Bukhari and Muslim.) *"the Arabic is ha’ waha’ meaning literally "take and take”.

Abu Sa'id and Abu Huraira told that Allah's Messenger ﷺ appointed a man over Khaibar and he brought him dates of a very fine quality. He asked him whether all the dates of Khaibar were like that, and he replied, “I swear by Allah that they are certainly not, Messenger of Allah . We take a sa‘ of this kind for two, and two for three." So he said, "Do not do so. Sell the lot for dirhams, then buy the very fine dates for dirhams." He said that it was the same when things were sold by weight. (Bukhari and Muslim.)

Abu Sa'id said that Bilal brought the Prophet (ﷺ) some barni* dates, and when he asked him where he had got them he replied, "I had some inferior dates, so I sold two sa's of them for a sa." He said, "Ah, the very essence of usury, the very essence of usury. Do not do so, but when you wish to buy, sell the dates in a separate transaction, then buy with what you get." (Bukhari and Muslim.) * A type of dates of the best quality, sweet and luscious, red tinged with yellow.

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 Allah's Messenger ﷺ 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.

Abu Huraira reported Allah's Messenger ﷺ as saying, “A time is certainly coming to mankind when only the receiver of usury will remain, and if he does not receive it some of its vapour (or alternatively, its dust) will reach him.” Ahmad, Abu Dawud, Nasa'i and Ibn Majah transmitted it.

‘Ubada b. as-Samit reported Allah's Messenger ﷺ 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.