﴿ وَمَا يَنظُرُ هَٰٓؤُلَآءِ إِلَّا صَيْحَةًۭ وَٰحِدَةًۭ مَّا لَهَا مِن فَوَاقٍۢ ﴾

“And they [who now deny the truth - they, too,] have but to wait for one single blast [of punishment to overtake them]: it shall not be delayed a whit.”

Please check ayah 38:16 for complete tafsir.