Quran 21:107 from Surah Al-Anbiyaa on Divine Marvels.
وَمَآ أَرۡسَلۡنَٰكَ إِلَّا رَحۡمَةٗ لِّلۡعَٰلَمِينَ
English translation: And not We have sent you but (as) a mercy for the worlds
Transliteration: wama arsalnaka illa rahmatan lil'alamina