وَاسْأَلِ الْقَرْيَةَ
Ask the town. (the relevant words of Yūsuf 12:82)
The expression is understood as asking the town's inhabitants. The implied 'people' can be recovered from established usage and context, so the omitted term does not defeat comprehension. Its brevity is defensible because a reliable contextual clue identifies the intended referent.
In a new sentence where an omission leaves the actor, object, or relevant entity indeterminate, the same drive for brevity could produce ambiguity instead of effective ījāz.