Surah Az-Zumar 39:25

كَذَّبَ ٱلَّذِينَ مِن قَبْلِهِمْ فَأَتَىٰهُمُ ٱلْعَذَابُ مِنْ حَيْثُ لَا يَشْعُرُونَ

Those before them denied, and punishment came upon them from where they did not perceive.

Translation: Saheeh International

Tafsir

Those who were before them denied their messengers with regard to the coming of the chastisement; and so the chastisement came on them whence they were not aware in a way that would never have occurred to them.

Excerpt from Tafsir al-Jalalayn, commentary on 39:25, via Quran.com. The reader has the full commentary and 9 more tafsirs.