ولا يجوز السلم في الجواهر
Translation: Salam is not permitted in gemstones.
Quduri excludes gemstones from salam. Two stones with the same weight may vary dramatically in clarity, colour, shape, flaws and value. The qualities distinguishing individual stones may resist sufficiently reliable description.
A promise to deliver “one high-grade stone of this weight after 3 months” might appear quantitatively precise while still leaving material qualitative uncertainty. The stated classical rule addresses that uncertainty, not a general assertion that all precious stones are intrinsically unlawful objects.
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Why the text excludes gemstones
Bab al-Salam: Fabric, Gems, Bricks and Precise Specification
ولا يجوز السلم في الجواهر
Translation: Salam is not permitted in gemstones.
Quduri excludes gemstones from salam. Two stones with the same weight may vary dramatically in clarity, colour, shape, flaws and value. The qualities distinguishing individual stones may resist sufficiently reliable description.
A promise to deliver “one high-grade stone of this weight after 3 months” might appear quantitatively precise while still leaving material qualitative uncertainty. The stated classical rule addresses that uncertainty, not a general assertion that all precious stones are intrinsically unlawful objects.