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.
[Qur'an 96:1-5]

Narrated Aisha(RA):The commencement of the Divine Inspiration to Allah's Apostle (PBUH) was in the form of true dreams. The Angel came to him and said, "Read, in the Name of your Lord Who has created (all that exists), has created man a clot. Read! And your Lord is Most Generous" ..