Infographic: The Three Stages of the Quran's Revelation at Nuzulul Quran
Nuzulul Quran is the event of the Quran being revealed to the Prophet Muhammad (peace be upon him) as guidance for humanity.
Three Stages of the Quran’s Revelation
The Quran was revealed to Lauhul Mahfuzh all at once. Allah established its existence there, as He determines all things according to His will.
The Quran descended from Lauhul Mahfuzh to Baitul Izzah (the Heaven of the World). This is explained in Surah Ad-Dukhan verse 3, Surah Al-Qadr verse 1, and Surah Al-Baqarah verse 185.
The Quran was revealed from Baitul Izzah to the Prophet Muhammad (peace be upon him) through the intermediary of the Angel Gabriel. This event occurred on 17 Ramadan at the Cave of Hira, Mecca. The Quran was revealed gradually to the Prophet over 23 years. This is explained in Surah Al-Baqarah verse 99 and Surah Ali Imran verse 7.