لَا إِلَهَ إِلَّا أَنْتَ سُبْحَانَكَ إِنِّي كُنْتُ مِنَ الظَّالِمِينَ
Translation 
The Dua of Yunos (may the peace and blessings of Allah be upon him) when he was in the belly of the whale:
"None has the right to be worshipped except You. How far from imperfections You are, verily I was among the wrong-doers."
*The prophet of Allah (may the peace and blessings of Allah be upon him) said: "Any Muslim who recite this du'a, his request will be granted by Allah."
"None has the right to be worshipped except You. How far from imperfections You are, verily I was among the wrong-doers."
*The prophet of Allah (may the peace and blessings of Allah be upon him) said: "Any Muslim who recite this du'a, his request will be granted by Allah."
Transliteration
laa ilaaha illaa anta subḥaanaka innee kuntu minaẓ-ẓaalimeen
Sources:
At-Tirmidhi No# 3505
