LessonsKitab al-Buyu: Shortage, Surplus, Buyer Options and Price AllocationQuiz

ومن ابتاع صبرة طعام على أنها مائة قفيز بمائة درهم فوجدها أقل كان المشتري بالخيار
Translation: Whoever buys a heap of food described as 100 qafiz for 100 dirhams and finds it to contain less has an option.

Sabrah means a grain heap; qafiz is a historical unit of capacity. The agreement here expressly specifies 100 qafiz, not merely an unidentified amount of grain.

A shortfall means part of the contracted quantity is absent. The buyer therefore receives an option rather than being automatically compelled to keep whatever happens to be present.

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Deficient heap: original ruling

Kitab al-Buyu: Shortage, Surplus, Buyer Options and Price Allocation

ومن ابتاع صبرة طعام على أنها مائة قفيز بمائة درهم فوجدها أقل كان المشتري بالخيار
Translation: Whoever buys a heap of food described as 100 qafiz for 100 dirhams and finds it to contain less has an option.

Sabrah means a grain heap; qafiz is a historical unit of capacity. The agreement here expressly specifies 100 qafiz, not merely an unidentified amount of grain.

A shortfall means part of the contracted quantity is absent. The buyer therefore receives an option rather than being automatically compelled to keep whatever happens to be present.