Some commentators believe that Quran was revealed to Muhammad two times being ' the immediate revelation ' happening on the Laylat al - Qadr and ' gradual revelation ' across 23 years. The Quran uses the word Inzal (انزال) which justifies ' the immediate revelation ', according to Allamah Tabatabai. However some others believe that the revelation of Quran occurred in two phases, with the first phase being the revelation in its entirety on Laylat al - Qadr to the angel Gabriel (Jibril in Arabic) in the lowest heaven, and then the subsequent verse - by - verse revelation to Muhammad by Gabriel. The revelation started in 610 CE at the Hira cave on Mount Nur in Mecca. The first Sura that was revealed was Sūrat al - ʿAlaq (in Arabic العلق). During the first revelation the first five verses of this Sura, or chapter, were revealed.
where did the night of power take place
at the Hira cave on Mount Nur in Mecca