Learn Farsi: این الزام برای اعمال قانون است. - This requirement is for the enforcement of the law.

elzâm comes from the Arabic root l-z-m, which you already know from the word lâzem (necessary). By plugging this root into the e-C1-C2-â-C3 pattern, it becomes a noun of causation. It literally means "making something necessary," which gives us "requirement" or "obligation."

Does e'mâl also follow the same e-C1-C2-â-C3 pattern?

Yes! Its root letters are '-m-l, which form the basis for amal (action or deed). When put into the 'Ef'âl' pattern, it creates e'mâl, meaning "causing an action to happen." In legal and formal contexts, this translates to the "application" or "enforcement" of a rule.

Why do we need an invisible ezafe between e'mâl and qânun?

You must pronounce this phrase as e'mâl-e qânun to link the action to the thing being acted upon (enforcement of the law). At the B2 level, you will frequently see these formal Arabic-derived verbal nouns linked directly to their objects using the ezafe rather than relying on verbs or prepositions.

Why use e'mâl here instead of a common Persian word like anjâm (doing or performing)?

While anjâm simply means carrying out a task, e'mâl carries a much stronger, more authoritative nuance. It specifically means to exert, apply, or enforce something abstract. This is why it pairs perfectly with concepts like (law), (power), or (influence).