In year 610 while he was at a cave on Mount Hira he received revelation from God (Allah) for the first time and angle Gabriel commanded him to recite the following verses;
Proclaim! (or read!) in the name of thy Lord and Cherisher, Who created-
Created man, out of a (mere) clot of congealed blood:
Proclaim! And thy Lord is Most Bountiful,-
He Who taught (the use of) the pen,-
Taught man that which he knew not.
Created man, out of a (mere) clot of congealed blood:
Proclaim! And thy Lord is Most Bountiful,-
He Who taught (the use of) the pen,-
Taught man that which he knew not.
—Qur'an, sura 96 (Al-Alaq), ayat 1-5