Qur'an 11:103

إِنَّ فِى ذَٰلِكَ لَـَٔايَةً لِّمَنْ خَافَ عَذَابَ ٱلْـَٔاخِرَةِ ۚ ذَٰلِكَ يَوْمٌ مَّجْمُوعٌ لَّهُ ٱلنَّاسُ وَذَٰلِكَ يَوْمٌ مَّشْهُودٌ

“Indeed in that is a sign for those who fear the punishment of the Hereafter. That is a Day for which the people will be collected, and that is a Day [which will be] witnessed.”

Hud 11:103 · Saheeh International