Quran 8:38 from Surah Al-Anfaal on Divine Marvels.
قُل لِّلَّذِينَ كَفَرُوٓاْ إِن يَنتَهُواْ يُغۡفَرۡ لَهُم مَّا قَدۡ سَلَفَ وَإِن يَعُودُواْ فَقَدۡ مَضَتۡ سُنَّتُ ٱلۡأَوَّلِينَ
English translation: Say to those who disbelieve if they cease will be forgiven for them what [verily] (is) past But if they return then verily preceded (the) practice (of) the former (people)
Transliteration: qul lilladhina kafaru in yantahu yugh'far lahum ma qad salafa wa-in ya'udu faqad madat sunnatu al-awalina