Jawda (quality) and ṣināʿa (workmanship) are named because the like-kind setoff is calculated by equivalence in kind and quantity. Superior craftsmanship does not itself enlarge the number of monetary units discharged.
If 50 fine-quality dirhams secure an 80-dirham debt and perish, 50 units of the same-kind debt are offset; they do not suddenly offset 60 just because their workmanship was superior. This is a particular classical rule on those fungibles.
Opening interactive controls...
Quality and workmanship do not change the like-kind count
Kitab al-Rahn: Salam, Sarf, Third-party Custody and Fungible Collateral
Jawda (quality) and ṣināʿa (workmanship) are named because the like-kind setoff is calculated by equivalence in kind and quantity. Superior craftsmanship does not itself enlarge the number of monetary units discharged.
If 50 fine-quality dirhams secure an 80-dirham debt and perish, 50 units of the same-kind debt are offset; they do not suddenly offset 60 just because their workmanship was superior. This is a particular classical rule on those fungibles.