«فَقُلْنَا: مَنِ الْمُلِمُّ فِي اللَّيْلِ الْمُدْلَهِمِّ؟»
We asked: Who has come upon us in this pitch-dark night?
Al-mulim(m) is an unexpected visitor, while al-mudlahimm describes intense darkness. Their matching endings contribute to the prose rhythm.
The question seeks identity but also registers surprise: why would someone arrive at such an hour? The answer comes not as plain prose but as verse.