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نُزُول vs تَنزِيل — All at Once vs Gradual Revelation

Two related words from the root ن-ز-ل describe the manner of coming down — whether it happens all at once or gradually. Both apply to the Quran and to rain.


The Two Forms

Arabic Form Type Meaning
إِنزَال / نُزُول Form IV / maṣdar One event, all at once Coming down in a single complete delivery
تَنزِيل Form II maṣdar Gradual, bit by bit Coming down slowly in stages

Applied to the Quran

Stage Arabic Explanation
First stage إِنزَال The entire Quran was sent down from the Preserved Tablet to the first heaven (bayt al-ʿizzah) on Laylat al-Qadr — all at once
Second stage تَنزِيل The Quran was then revealed to the Prophet ﷺ over 23 years, in portions — gradually

This is why both words appear in the Quran for the Quran itself — they refer to two different stages of revelation, not a contradiction.


Applied to Rain

In the same way:

Arabic Rain Type
أَنزَلَ مِنَ السَّمَاءِ مَاءً (Form IV) Heavy, sudden rainfall — could be a deluge
يُنَزِّلُ مِنَ السَّمَاءِ مَاءً (Form II) Steady, gradual rainfall — more beneficial, revives the earth

Sūrat al-Rūm 30:24

وَيُنَزِّلُ مِنَ السَّمَاءِ مَاءً — Here تَنزِيل (Form II) is used, signalling the beneficial, gentle rain that revives dead earth — not a destructive flood.


Session References

  • Selections from the Glorious Quran Session 21: نُزُول vs تَنزِيل introduced in context of Sūrat al-Rūm rain imagery; applied to Quran revelation (two-stage explanation).