Quran 10:97 from Surah Yunus on Divine Marvels.
وَلَوۡ جَآءَتۡهُمۡ كُلُّ ءَايَةٍ حَتَّىٰ يَرَوُاْ ٱلۡعَذَابَ ٱلۡأَلِيمَ
English translation: Even if comes to them every Sign until they see the punishment the painful
Transliteration: walaw jaathum kullu ayatin hatta yarawu al-'adhaba al-alima