<P> 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 . </P>
where did the night of power take place
at the Hira cave on Mount Nur in Mecca