It wasn’t illusion and it wasn’t a dream
When Muhammad reached forty years old, he used to meditate frequently in Cave Hira. At the month of Ramadan (the ninth month of the lunar year, 610 CE approx), Archangel Gabriel appeared to him for the first time while he was in the cave and asked him to “Read”. Muhammad was frightened.
As he was illiterate, he could not read and did not know what to read. Archangel Gabriel repeated his word “read” again and again then he recited the following verses from God:
“Read in the Name of your Lord Who created (everything), He created man from a clot (clinging to the wall of the womb)…Read ! and your Lord is the All-Munificent Who taught man by the pen…He taught man what he didn’t know!” The Quran, 96:1-5
Archangel Gabriel disappeared after this short meeting.
A practical introduction of Muhammad's teachings in Abyssinia
Ja’far bin Abi-Talib was among eighty Muslims who fled for protection in the land of Abyssinia (currently Ethiopia in Africa). Speaking to the King of Abyssinia on behalf of the Muslims who sought asylum there, Ja’far said
A Christian King acknowledged Muhammad’s religion:
After Ja’far delivered his talk, the King of Abyssinia (who was a religious and God fearing person) asked Ja’far to recite some verses from the "Book" revealed to Muhammad.
Ja’far recited a portion from the chapter “Mary”1, the Mother of Jesus. He continued recitation until the King wept and his beard was moist with tears. “The message brought by Muhammad and that which was brought by Jesus are from a single source.” The King then said: