لَا إِلَٰهَ إِلَّا أَنْتَ سُبْحَانَكَ إِنِّي كُنْتُ مِنَ الظَّالِمِينَ
Transliteration
La ilaha illa anta subhanaka inni kuntu minaz-zalimin.
English Translation
There is no deity except You; glory be to You. Indeed, I have been among the wrongdoers.
About this Dua
The supplication of Prophet Yunus (Jonah), peace be upon him, during hardship.
Reference
Quran • Qur'an 21:87