O mankind, fear your Lord. Indeed, the convulsion of the [final] Hour is a terrible thing.
The Saheeh International Quran Translation
يَٰٓأَيُّهَا ٱلنَّاسُ ٱتَّقُوا۟ رَبَّكُمْ إِنَّ زَلْزَلَةَ ٱلسَّاعَةِ شَىْءٌ عَظِيمٌO mankind, fear your Lord. Indeed, the convulsion of the [final] Hour is a terrible thing.