وَإِذَا حَدَثَ عِنْدَ الْمُشْتَرِي عَيْبٌ ثُمَّ اطَّلَعَ عَلَى عَيْبٍ كَانَ عِنْدَ الْبَائِعِ فَلَهُ أَنْ يَرْجِعَ بِنُقْصَانِ الْعَيْبِ، وَلَا يَرُدُّ الْمَبِيعَ إِلَّا أَنْ يَرْضَى الْبَائِعُ أَنْ يَأْخُذَهُ بِعَيْبِهِ
Translation: If a new defect occurs in the buyer’s possession and a pre-existing defect is then discovered, the buyer may claim compensation for the earlier defect; return with the new damage requires the seller’s consent.
Two defects coexist: a pre-existing defect and a later defect while with the buyer.
Compensation for the original defect prevents harm to the buyer, while the seller cannot be forced to accept additional new damage.
Example: a machine had a hidden internal fault, and the buyer later broke its casing. The earlier defect may support an arsh claim, while return needs the seller’s consent.