LessonsBab al-Salam: Fabric, Gems, Bricks and Precise SpecificationQuiz

The rule helps analyze modern standardized products, but similarity does not by itself settle a new product's legal status. One must first determine whether interchangeable units are genuinely deliverable according to objective grade, quantity and agreed time.
An order for a large quantity of standardized screws is structurally different from commissioning one unique handmade artwork. The possibility of reliably describing and replacing each unit is part of the analysis; further contractual conditions must still be checked.

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Careful application to modern manufactured goods

Bab al-Salam: Fabric, Gems, Bricks and Precise Specification

The rule helps analyze modern standardized products, but similarity does not by itself settle a new product's legal status. One must first determine whether interchangeable units are genuinely deliverable according to objective grade, quantity and agreed time.
An order for a large quantity of standardized screws is structurally different from commissioning one unique handmade artwork. The possibility of reliably describing and replacing each unit is part of the analysis; further contractual conditions must still be checked.