The Relief from Distress: An Explanation to the Du'a of Yunus
A book in English collects the sayings of Imam Ibn Taymeya about the supplication of Prophet Yunus (peace be upon him) when he was in the belly of the whale. It is, "There is none worthy of worship except You. You are pure. Verily, I am amongst the oppressors." (Surat Al-Anbiya: 87) The Prophet (peace and blessings of Allah be upon him said, "The supplication of Dhun-Nun (Prophet Yunus) when he supplicated, while in the belly of the whale was, ‘There is none worthy of worship except You, Glory to You, Indeed, I have been of the transgressors.' So indeed, no Muslim supplicates with it for anything, except Allah responds to him.” (Narrated by At-Termidhy)