Quran 3:102 from Surah Aal-i-Imraan on Divine Marvels.
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ ٱتَّقُواْ ٱللَّهَ حَقَّ تُقَاتِهِۦ وَلَا تَمُوتُنَّ إِلَّا وَأَنتُم مُّسۡلِمُونَ
English translation: O you who believe[d]! Fear Allah (as is His) right (that) He (should) be feared and (do) not die except [while you] (as) Muslims
Transliteration: yaayyuha alladhina amanu ittaqu al-laha haqqa tuqatihi wala tamutunna illa wa-antum mus'limuna