وَقَدْ تُسْتَعْمَلُ صِيغَةُ النِّدَاءِ فِي الِاسْتِعَانَةِ نَحْوَ: يَا اللَّهُ
The vocative can be used to seek help, as in “yā Allāh.”
In istiʿānah, a vocative presents an appeal for assistance. “Yā Allāh” uttered in distress is not primarily an attempt to inform God of one’s location; it is an invocation for help.
The grammatical form remains a vocative, but its communicative purpose overlaps with supplication. This demonstrates why the pragmatic aim cannot be read solely from the presence of a vocative particle.