What is the refundable amount when returning an item purchased with a discount on the total invoice, and does the use of the item, the damage of some of its parts, or its exposure to scratches affect the possibility of returning it or deducting a portion of its price, and what is the legitimate position of the seller when reselling these items?

The discount percentage is calculated by dividing the discounted amount by the total value, then multiplying the percentage by the original price of the device to determine its specific discount amount. Alternatively, the total discount amount can be multiplied by the original price of the device and the result divided by the total price.

If the seller accepts the buyer's cancellation of the returned goods, he must refund the full price, because cancellation (iqalah) is a rescission, not a sale. An agreement can be made to estimate the price of any damaged accessories of the item.

In the case of returning goods due to a defect, if the defect occurred before the buyer took possession and affected the value or purpose, the buyer has the option of defect (khiyar al-ayb). He may return it and recover the full price. Minor defects resulting from normal use are not considered. However, if the item becomes significantly defective while with the buyer, rendering it unsuitable for its intended purpose, he must keep it and receive compensation (arsh) for the old defect. For medium defects, the buyer has the choice between returning it and recovering the price, or keeping it and receiving compensation for the defect. All of this is conditional on the buyer not having accepted the sold item after becoming aware of the defect.

The ruling on reselling defective goods depends on the nature of the defect: If the defect is not customarily significant and does not reduce the price, there is no harm in not disclosing it. However, if it affects the price reduction, it must be disclosed, and concealing it establishes the option of return due to defect.