Is a forward sale valid for cooked or roasted animal heads and limbs?
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Al-Mughni
Book of Sales
Primary text
Al-Shafi'i explicitly states that a forward sale for animal heads and limbs that have been cooked or roasted is invalid. This aligns with the juristic reasoning of Al-Qadi (the judge) because cooking causes the substance to disperse ('yatanathar') and leads to variance.
Supporting text
The opinion of other Ashabuna (companions/followers of the school) of Al-Shafi'i, along with Malik, Al-Awza'i, and Abu Thawr, holds that the ruling for items touched by fire (cooked/roasted) is the same as for uncooked items. They argue that the contract requires the item to be sound and unaffected, and since cooking methods vary by custom, it should resemble other items in its ruling.