Quran 29, Al-Ankabut (The Spider) ⓘ
29:3 But We have certainly tried those before them, and Allah will surely make evident those who are truthful, and He will surely make evident the liars.
وَلَقَدْ فَتَنَّا الَّذِينَ مِنْ قَبْلِهِمْ فَلَيَعْلَمَنَّ اللَّهُ الَّذِينَ صَدَقُوا وَلَيَعْلَمَنَّ الْكَاذِبِينَ