It is derived from the words Inna fatah-na laka fat-han mubina of the very first verse. This is not only a name of the Surah but also its title in view of the subject matter, for it deals with the great victory that Allah granted to the Holy Prophet and the Muslims in the form of the Truce of Hudaibiyah.
Period of Revelation
Traditions concur that it was sent down in Dhil-Qadah, A. H. 6, at a time when the Holy Prophet was on his return journey to Madinah after concluding the Truce of Hudaibiyah with the disbelievers of Makkah.
The events in connection with which this Surah was sent down began life this: One day the Holy Prophet saw in a dream that he had gone to Makkah with his Companions and had performed the umrah there. Obviously, the Prophet's dream could not be a mere dream and fiction for it is a kind of Divine inspiration as Allah Himself has confirmed in verse 27 below and said that He Himself had shown that dream to His Messenger. Therefore, it was not merely a dream but a Divine inspiration which the Holy Prophet had to obey and follow.
English Translation: Noor International