Narrated Ibn `Umar: The Prophet said, "The selling of wheat for wheat is Riba (usury) except if it is handed from hand to hand and equal in amount. Similarly the selling of barley for barley, is Riba except if it is from hand to hand and equal in amount, and dates for dates is usury except if it is from hand to hand and equal in amount. (See Riba-Fadl in the glossary).

Narrated Az-Zuhri from Malik bin Aus: that the latter said, "Who has change?" Talha said, "I (will have change) when our storekeeper comes from the forest." Narrated `Umar bin Al-Khattab: Allah's Apostle said, "The bartering of gold for silver is Riba, (usury), except if it is from hand to hand and equal in amount, and wheat grain for wheat grain is usury except if it is form hand to hand and equal in amount, and dates for dates is usury except if it is from hand to hand and equal in amount, and barley for barley is usury except if it is from hand to hand and equal in amount." (See Riba-Fadl in the glossary).

Narrated Ibn Shihab: that Malik bin Aus said, "I was in need of change for one-hundred Dinars. Talha bin 'Ubaidullah called me and we discussed the matter, and he agreed to change (my Dinars). He took the gold pieces in his hands and fidgeted with them, and then said, "Wait till my storekeeper comes from the forest." `Umar was listening to that and said, "By Allah! You should not separate from Talha till you get the money from him, for Allah's Apostle said, 'The selling of gold for gold is Riba (usury) except if the exchange is from hand to hand and equal in amount, and similarly, the selling of wheat for wheat is Riba (usury) unless it is from hand to hand and equal in amount, and the selling of barley for barley is usury unless it is from hand to hand and equal in amount, and dates for dates, is usury unless it is from hand to hand and equal in amount"

Narrated Abu Bakra: Allah's Apostle said, "Don't sell gold for gold unless equal in weight, nor silver for silver unless equal in weight, but you could sell gold for silver or silver for gold as you like."

Narrated Abu Sa`id: (Concerning exchange) that he heard Allah's Apostle saying, "Do not sell gold for gold unless equal in weight, and do not sell silver unless equal in weight."

Narrated Abu Sa`id Al-Khudri: Allah's Apostle said, "Do not sell gold for gold unless equivalent in weight, and do not sell less amount for greater amount or vice versa; and do not sell silver for silver unless equivalent in weight, and do not sell less amount for greater amount or vice versa and do not sell gold or silver that is not present at the moment of exchange for gold or silver that is present.

Narrated Abu Al-Minhal: I asked Al-Bara' bin `Azib and Zaid bin Arqam about money exchanges. Each of them said, "This is better than I," and both of them said, "Allah's Apostle forbade the selling of silver for gold on credit. "

Narrated `Abdur-Rahman bin Abu Bakra: that his father said, "The Prophet forbade the selling of gold for gold and silver for silver except if they are equivalent in weight, and allowed us to sell gold for silver and vice versa as we wished."

Narrated Abu Sa`id Al-Khudri and Abu Huraira: Allah's Apostle sent the brother of the tribe of Bani Adi Al-Ansari as governor of Khaibar. Then the man returned, bringing Janib (a good kind of date). Allah's Apostle asked him, "Are all the dates of Khaibar like that?" He replied, "No, by Allah, O Allah's Apostle! We take one Sa' of these (good) dates for two Sas of mixed dates." Allah's Apostle then said, "Do not do so. You should either take one Sa of this (kind) for one Sa' of the other; or sell one kind and then buy with its price the other kind (of dates), and you should do the same in weighing."