Continuation of the previous discussion.
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The Shaykh : Hand to hand. If it is hand to hand, it is valid. If you sell a sa' of wheat for two sa' of wheat hand to hand, yes. If you take delivery after two days, it is riba. Why? Because it is not hand to hand. Okay, if you sell a sa' of wheat for a sa' of barley, it is permissible hand to hand. Okay, if you sell a sa' of wheat for two sa' of barley, it is permissible hand to hand. Okay, there is an excess, but there is no harm, because the Messenger of Allah (peace and blessings be upon him) said: Sahih Muslim 1587c Okay, if you sell a sa' of good wheat for one and a half sa' of bad wheat, the value is the same, because the good sa' is worth four riyals, and one and a half sa' of bad wheat is worth four riyals; the value is the same.
The student: Riba.
The Shaykh : Riba. Why? The excess and the type are the same. And if the type is the same, the excess is not permissible. So this is riba, whether it is hand to hand or the delivery of one of them is delayed. Okay, the ribawi categories. My brother, answer: how many are there? Six. May Allah reward you.
If these classes differ, then sell as you wish
إذا اختلفت هذه الأصناف فبيعوا كيف شئتمThe student: Riba.
The Shaykh : Riba. Why? The excess and the type are the same. And if the type is the same, the excess is not permissible. So this is riba, whether it is hand to hand or the delivery of one of them is delayed. Okay, the ribawi categories. My brother, answer: how many are there? Six. May Allah reward you.