A judge assumes “mal ʿazim” always equals a fixed amount of modern local currency. What is the problem?

Kitab al-Iqrar: Capacity, Unspecified Rights, and Amounts in Admissions

• A classical 200-dirham measure cannot be converted to a fixed modern currency figure without analysis
• Because mal ʿazim always means 3 dirhams
• Because ancient dirhams are still the legal tender of every country
• Because words of acknowledgment never affect liability