Surah Al-'Ankabut 29:2

أَحَسِبَ ٱلنَّاسُ أَن يُتْرَكُوٓا۟ أَن يَقُولُوٓا۟ ءَامَنَّا وَهُمْ لَا يُفْتَنُونَ

Do the people think that they will be left to say, "We believe" and they will not be tried?

Translation: Saheeh International

Tafsir

Do people suppose that they will be left to say that is that they will be left alone because of their saying ‘We believe’ and they will not be tried? tested with that which will reveal the sincerity of their belief. …

Excerpt from Tafsir al-Jalalayn, commentary on 29:2, via Quran.com. The reader has the full commentary and 9 more tafsirs.