Quran 73:15 from Surah Al-Muzzammil on Divine Marvels.
إِنَّآ أَرۡسَلۡنَآ إِلَيۡكُمۡ رَسُولٗا شَٰهِدًا عَلَيۡكُمۡ كَمَآ أَرۡسَلۡنَآ إِلَىٰ فِرۡعَوۡنَ رَسُولٗا
English translation: Indeed We [We] have sent to you a Messenger (as) a witness upon you as We sent to Firaun a Messenger
Transliteration: inna arsalna ilaykum rasulan shahidan alaykum kama arsalna ila fir'awna rasulan