Al 'Ankabut, 3 Ayah
29:3
وَلَقَدۡ فَتَنَّا ٱلَّذِينَ مِن قَبۡلِهِمۡۖ فَلَيَعۡلَمَنَّ ٱللَّهُ ٱلَّذِينَ صَدَقُواْ وَلَيَعۡلَمَنَّ ٱلۡكَٰذِبِينَ ٣
Wa Laqad Fatannā Al-Ladhīna Min Qablihim ۖ Falaya`lamanna Al-Lahu Al-Ladhīna Şadaqū Wa Laya`lamanna Al-Kādhibīna
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.