The Surah takes its name from V. 98, in which there is a reference to Prophet Yunus (Jonah). The name, as usual, is symbolical and does not indicate that the Surah deals with the story of Prophet Jonah.
Period of Revelation
We learn from traditions, and this is supported by the contents of the Surah itself, that the whole of this Surah was revealed at Makkah. But there are some people who are of the opinion, that some of its verses were revealed at Al-Madinah. This is, however, a superficial view. The continuity of the theme clearly shows that this does not comprise isolated verses or discourses that were revealed at different times and on different occasions. On the contrary, it is, from the beginning to the end, a closely connected discourse which must have been revealed at one sitting. Besides this, the nature of its theme is itself a clear proof that the Surah belongs to the Makkan period.
Time of Revelation
We have no tradition in regard to the time of it's revelation, but its subject matter gives clear indication that it must have been revealed during the last stage of the Holy Prophet's residence at Makkah. For the mode of the discourse suggests that at the time of its revelation, the antagonism of the opponents of the Message had become so intense that they could not tolerate even the presence of the Holy Prophet and his followers among themselves, and that things had come to such a pass as to leave no hope that they would ever understand and accept the Message of the Prophet. This indicates that the last stage of the Prophet's life among thee people had come, and the final warning like the one in this Surah had to be given. These characteristics of the discourse are clear proof that it was revealed during the last stage of the Movement at Makkah.
English Translation: Noor International