Riba (usury) is one of the types of exploitation in transactions. It entails great harm and involves unlawful earnings and taking extra money wrongfully. Therefore, it has been prohibited in all the laws that have been revealed. Riba has various types, all of which are prohibited. Riba al-Fadl (usury of surplus) is one type of it; it means selling an item that is subject to Riba rulings for another of the same kind with excess in one of the two, like selling a gold dinar for two dinars and a silver dirham for two dirhams. Hence, the Prophet (may Allah's peace and blessings be upon him) ordered us in this Hadīth to sell gold for gold - whether in the form of gold dinars or others - weight for weight and like for like without addition or reduction, so, both should be similar in weight and equal. Likewise, silver is to be sold for silver - whether in the form of silver dirhams or others - weight for weight and like for like without addition or reduction, so both should be equal in weight. Whoever gives more or takes more has committed unlawful Riba. Other versions have clarified that if the types vary, then selling with a surplus is permissible; however, the sale should not be for a deferred payment; rather, it should be immediate, as the Prophet (may Allah's peace and blessings be upon him) said in the two Sahīh Collections - and this is the wording of Al-Bukhāri -: "And sell gold for silver and silver for gold as you wish." In Sahīh Muslim Collection: "If these classes differ, sell as you wish as long as payment is made hand to hand." The Hadīth highlights the prohibition of Riba al-Fadl (usury of surplus). It stresses the prohibition of all transactions that entail harm to people in terms of their properties and relations..