Quran 2:104 from Surah Al-Baqara on Divine Marvels.
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ لَا تَقُولُواْ رَٰعِنَا وَقُولُواْ ٱنظُرۡنَا وَٱسۡمَعُواْۗ وَلِلۡكَٰفِرِينَ عَذَابٌ أَلِيمٞ
English translation: O you who believe[d]! (Do) not say Raina and say Unzurna and listen And for the disbelievers (is) a punishment painful
Transliteration: yaayyuha alladhina amanu la taqulu ra'ina waqulu unzur'na wa-is'ma'u walil'kafirina adhabun alimun