There is no deity except You; exalted are You. Indeed, I have been of the wrongdoers.
“There is no deity except You; exalted are You. Indeed, I have been of the wrongdoers.”
O Messenger! Also mention the story of the Companion of the Whale: Jonah (peace be upon him), when he went away without the permission of his Lord, angry with his people for their insistence on sin.
The plain meaning, from Al-Mukhtasar fi at-Tafsir
وَذَا ٱلنُّونِ إِذ ذَّهَبَ مُغَٰضِبًا فَظَنَّ أَن لَّن نَّقْدِرَ عَلَيْهِ فَنَادَىٰ فِى ٱلظُّلُمَٰتِ أَن لَّآ إِلَٰهَ إِلَّآ أَنتَ سُبْحَٰنَكَ إِنِّى كُنتُ مِنَ ٱلظَّٰلِمِينَ
And mention the man of the fish i.e., Jonah, when he went off in anger and thought that We would not decree anything upon him. And he called out within the darknesses, "There is no deity except You; exalted are You. Indeed, I have been of the wrongdoers."
What does Quran 21:87 mean?
These are the words of Yunus (peace be upon him) from inside the whale — what the Qur’an calls “the darknesses”, which the commentators read as three at once: the belly, the sea and the night. What he says is worth noticing for what it leaves out. There is no request in it. He declares Allah’s oneness, exalts Him above any fault, and names himself as the one in the wrong; the deliverance comes in the next verse.
Written from Al-Mukhtasar fi at-Tafsir