وَقَالَ يَا أَسَفَىٰ عَلَىٰ يُوسُفَ
He cried, “Alas, my sorrow for Joseph!”
In Yūsuf 12:84, yā asafā uses the form of a vocative, yet its function is lamentation rather than calling a person into the scene. The interjection makes sorrow audible within the narrative.
A vocative particle does not always perform the same communicative act. Distinguish form from the speech-act function supplied by the context.