Quran 26:20 from Surah Ash-Shu'araa on Divine Marvels.
قَالَ فَعَلۡتُهَآ إِذٗا وَأَنَا۠ مِنَ ٱلضَّآلِّينَ
English translation: He said I did it when I (was) of those who are astray
Transliteration: qala fa'altuha idhan wa-ana mina al-dalina