Quran 26:12 from Surah Ash-Shu'araa on Divine Marvels.
قَالَ رَبِّ إِنِّيٓ أَخَافُ أَن يُكَذِّبُونِ
English translation: He said My Lord! Indeed I [I] fear that they will deny me
Transliteration: qala rabbi inni akhafu an yukadhibuni