Quran 9:115 from Surah At-Tawba on Divine Marvels.
وَمَا كَانَ ٱللَّهُ لِيُضِلَّ قَوۡمَۢا بَعۡدَ إِذۡ هَدَىٰهُمۡ حَتَّىٰ يُبَيِّنَ لَهُم مَّا يَتَّقُونَۚ إِنَّ ٱللَّهَ بِكُلِّ شَيۡءٍ عَلِيمٌ
English translation: And not is (for) Allah that He lets go astray a people after [when] He has guided them until He makes clear to them what they should fear Indeed Allah (of) every thing (is) All-Knower
Transliteration: wama kana al-lahu liyudilla qawman ba'da idh hadahum hatta yubayyina lahum ma yattaquna inna al-laha bikulli shayin alimun