Al Hijr Ayah 8

مَا نُنَزِّلُ ٱلْمَلَـٰٓئِكَةَ إِلَّا بِٱلْحَقِّ وَمَا كَانُوٓاْ إِذًا مُّنظَرِينَ ٨ We do not send the angels down except for a just cause, and then ?the end of? the disbelievers will not be delayed.