Quran 36:61 from Surah Yaseen on Divine Marvels.
وَأَنِ ٱعۡبُدُونِيۚ هَٰذَا صِرَٰطٞ مُّسۡتَقِيمٞ
English translation: And that you worship Me This (is) a Path straight
Transliteration: wa-ani u'buduni hadha siratun mus'taqimun