Surah Al-Kahf 18:99

۞ وَتَرَكْنَا بَعْضَهُمْ يَوْمَئِذٍ يَمُوجُ فِى بَعْضٍ ۖ وَنُفِخَ فِى ٱلصُّورِ فَجَمَعْنَـٰهُمْ جَمْعًا

And We will leave them that day surging over each other, and [then] the Horn will be blown, and We will assemble them in [one] assembly.

Translation: Saheeh International

Tafsir

And on that day the day of their coming forth We shall let some of them surge against others mixing with one another on account of their multitude and the Trumpet namely the Horn signalling the Resurrection shall be blown and We shall gather them namely creatures in one place on the Day of Resurrection a single …

Excerpt from Tafsir al-Jalalayn, commentary on 18:99, via Quran.com. The reader has the full commentary and 9 more tafsirs.