The one with N, when he went off in anger, and he thought that We would not be able to take him. Then he called out in the darkness: "There is no god but You! Glory to You, I was of the wicked!"
Translation endnotes
[21:87] Yunus' (Jonah) name occurs in the Quran four times as Jonah. However, in the chapter that starts with the letter N or number 50, Jonah is referred to by the expression Sahib ul-Hut, that is, The Companion of the Fish (68:48). Referring to a messenger who has the letter N in his name, with an expression that does not contain the letter N, in a chapter where the letter N is counted (133 = 19 x 7), is a part of the Quran's mathematical system. Indeed, a unique expression in verse 21:87 supports this implied message.