THE MENTION in verse 25 of "iron" and all that this word implies (see note 42 below) so impressed the contemporaries and successors of the Prophet that this surah has always been known as "the surah in which iron is mentioned" (Tabari). From the reference to the conquest of Mecca (al-fath) in verse 10 it is obvious that the earliest date of its revelation would be the end of the year 8 H.
ALL THAT IS in the heavens and on earth extols God's limitless glory: for He alone is almighty, truly wise!