Al-Ḥadīd (English: Iron; Arabic: الحديد) is the 57th chapter (sūrah) of the Quran with 29 verses.
Regarding the timing and contextual background of the revelation, it is a Medinan chapter, which means it is believed to have been revealed in Medina rather than Mecca.
In his tafsir (exegesis), Ma’ariful-Qur’an, Muhammad Shafi Deobandi wrote: “It is recorded in Abu Dawud, Tirmidhi and Nasa’i that Sayyidna ‘Irbad Ibn Sariyah (may Allah be pleased with him) said that the Messenger of Allah (may peace be upon him) used to recite Al-Musabbihat before he went to sleep and said: ‘In them there is a verse that is more meritorious than a thousand verses’.
“The collective name of the series Al-Musabbihat refers to the following five Surahs: (1) Al-Hadid; (2) Al-Hashr; (3) As-Saff; (4) Al-Jumu’ah; and (5) At-Taghabun.
“Among the five Surahs, the first three namely Al-Hadid, Al-Hashr and As-Saff commence with the past perfect tense ‘sabbaha’ (purity has been proclaimed) whilst the last two, namely Al-Jumu’ah and At-Taghabun commence with the imperfect tense ‘yusabbihu’ (purity is proclaimed).