Mikail is named directly in the Qur'an only once, in Surah al-Baqarah 2:98, paired there with Jibril in a verse defending both angels against those who treated hostility to them as acceptable. Almost everything beyond that single mention, including his particular association in later tradition with rain, plant growth, and the provision of sustenance to creation, comes from hadith literature and subsequent exegetical and folk elaboration rather than from the Qur'anic text itself. This pattern, a name attested once in scripture and then filled out considerably by later hadith and popular tradition, recurs across several of the named angels in Islamic tradition and is part of why scholars distinguish carefully between what the Qur'an itself states and what later, still authoritative but textually later, sources add.
Different hadith collections and regional traditions do not describe Mikail's specific duties identically, some placing more emphasis on rain and weather, others on sustenance more broadly, and the variation is consistent with a figure whose detailed job description was built up gradually by generations of scholars and storytellers working from a single brief scriptural mention rather than handed down complete and unanimous from the outset.