Authentic Supplication Number 130.

The Messenger of Allah said: “The petition of Thin-Noon [Jonah] which he petitioned with when he was inside the whale: La ‘ilaha ‘illa ‘anta, subhanaka ‘innee kuntu minath-thalimeena (151).

No Muslim ever supplicated Allah with this supplication in any matter at all, except that Allah answered his supplication”.

Footnotes.
(151) There is no ‘ilah except You, Glorified are Thee, I have been one of the unjust.

Reporters.
Ibn Taymiyah referenced it to At-Tirmithi, and Al-Albani said it was in his Sunan as (#260/4), and that it w as likewise reported by Ahmad (#170/1), and Al-Hakim (#383/2). He said that Al-Hakim said it was sound, and that Ath-Thahabi agreed with him. Al-Albani included this hadeeth in The Authentic of Good Sayings as #101.