وَمَا يَنظُرُ هَـٰٓؤُلَآءِ إِلَّا صَيْحَةً وَٰحِدَةً مَّا لَهَا مِن فَوَاقٍ
Wa maa yanzuru haaa ulaaa'i illaa saihatanw waahidatam maa lahaa min fawaaq
all the disbelievers here are waiting for is a single blast that cannot be postponed.
These people are waiting for nothing but a single blast — one that cannot be delayed.