These revelations are the first five verses of Surah (chapter) 96 of the Qur’an. Thus it was in the year 610 CE the revelation began.
Muhammad (s) was terrified by the whole experience of the revelation and fled the cave of Mt. Hira [Qur'an 81:19-29]. When he reached his home, tired and frightened, he asked his wife: ‘cover me, cover me,’ in a blanket. After his awe had somewhat abated, his wife Khadijah asked him about the reason of his great anxiety and fear. She then assured him by saying: "Allah (The One God) will not let you down because you are kind to relatives, you speak only the truth, you help the poor, the orphan and the needy, and you are an honest man." Khadijah then consulted with her cousin Waraqa who was an old, saintly man possessing knowledge of previous revelations and scriptures. Waraqa confirmed to her that the visitor was none other than the Angel Gabriel who had come to Moses. He then added that . Khadijah accepted the revelation as truth and was the first person to accept Islam. She supported her husband in every hardship, most notably during the three-year ‘boycott’ of the Prophet’s clan by the pagan Quraish. She died at the age of sixty-five in the month of Ramadan soon after the lifting of the boycott in 620 CE.
Gabriel (as) visited the Prophet as commanded by Allah revealing Ayat (meaning signs, loosely referred to as verses) in Arabic over a period of twenty-three years. The revelations that he received were sometimes a few verses, a part of a chapter or the whole chapter. Some revelations came down in response to an inquiry by the nonbelievers. The revealed verses were recorded on a variety of available materials (leather, palm leaves, bark, shoulder bones of animals), memorized as soon as they were revealed, and were recited in daily prayers by Muslims [Qur'an 80:13-16]. Angel Gabriel taught the order and arrangement of verses, and the Prophet instructed his several scribes to record verses in that order [Qur'an 75:16-19 and 41:41-42]. Once a year, the Prophet used to recite all the verses revealed to him up to that time to Gabriel to authenticate the accuracy of recitation and the order of verses [Qur'an 175:106]. All the revealed verses ( and ending in 632 CE) were compiled in the book known as Qur’an. The name Qur’an appears in the revealed verses. The does not contain even a word from the Prophet. The Qur'an speaks in the first person, i.e., Allah's commandments to His creation. Gabriel also visited the Prophet throughout his mission informing and teaching him of events and strategy as needed to help in the completion of the prophetic mission. The Prophet’s sayings, actions, and approvals are recorded separately in collections known as Hadith.
The mission of Prophet Muhammad (s) was to restore the worship of the One True God, the creator and sustainer of the universe, as taught by Prophet Ibrahim and all , and to demonstrate and complete the laws of moral, ethical, legal, and social conduct and all other matters of significance for the humanity at large.
The first few people who followed this message were: his cousin Ali, his servant Zayd ibn Harithah, his friend Abu Bakr and his wife and daughters. They accepted Islam by testifying that:
"There is no Deity (worthy of worship) except Allah (The One True God) and Muhammad is the Messenger of Allah."
Islam means peace by submission and obedience to the Will and Commandments of God and those who accept Islam are called Muslims, meaning those who have accepted the message of peace by submission to God.
In the first three years of his mission forty people (men and women) accepted Islam. This small group comprised of youth as well as older people from a wide range of economic and social background. The Prophet was directed by a recent revelation to start preaching Islam to everyone. He then began to recite revelations to people in public and invite them to Islam. The Quraish, leaders of Makkah, took his preaching with hostility. The most hostile and closest to the prophet was his uncle Abu Lahab and his wife. Initially, they and other leaders of Quraish tried to bribe him with money and power including if he were to abandon his message. When this did not work, they tried to convince his uncle Abu Talib to accept the best young man of Makkah in place of Muhammad and to allow them to kill Muhammad. His uncle tried to persuade the Prophet to stop preaching but the Prophet said: "O uncle, if they were to put the sun in my right hand and the moon in my left hand to stop me from preaching Islam, I would never stop. I will keep preaching until Allah makes Islam prevail or I die."
The Quraish began to persecute Muslims by beating, torture and boycott of their businesses. Those who were weak, poor or slaves were publicly tortured.
When the persecution became unbearable for most Muslims, the Prophet advised them in the fifth year of his mission (615 CE) to emigrate to Abyssinia (modern Ethiopia) where Ashabah (Negus, a Christian) was the ruler. Eighty people, not counting the small children, emigrated in small groups to avoid detection.
In 622 CE, the leaders of the Quraish decided to kill the Prophet and they developed a plan in which one man was chosen from each of the Quraish tribes and they were to attack the Prophet simultaneously. Gabriel informed the Prophet of the plan and instructed him to leave Makkah immediately. The Prophet, after making arrangements to return the properties entrusted to him by several nonbelievers, left with Abu Bakr in the night he was to be assassinated. They went south of Makkah to a mountain cave of Thawr [see Qur'an 9:40], and after staying three nights they traveled north to Yathrib (Medinah) about two hundred fifty miles from Makkah. Upon discovery of his escape, the leaders of Quraish put up a reward of one hundred camels on him, dead or alive. In spite of all their best scouts and search parties, Allah protected the Prophet and , a suburb of Medinah [Qur'an 28:85]. This event is known as the ‘Hijra’ (migration) and the Islamic calendar begins with this event. The people of Aws and Khazraj in Medinah greeted him with great enthusiasm in accordance with their made at Aqaba less than a year ago during the annual pilgrimage. One by one those Muslims (men and women) of Makkah who were not physically restrained, and who could make a secret exit, left for Medinah leaving behind their properties and homes.
To insure the peace and tranquility, the Prophet proposed a defining terms of conduct for all inhabitants of Medinah. It was ratified by all - Muslims, non-Muslim Arabs and Jews. After his emigration to Medinah, the enemies of Islam increased their assault from all sides. The Battles of Badr, Uhud and Allies (Trench) were fought near or around Medinah. In these battles until the year 627 CE, the nonbelievers with encouragement from Jews and other Arabian tribes attacked the Prophet and Muslim community. The Muslims while defending their city and religion lost many men, which resulted in many widowed Muslim women and numerous orphaned children. In these circumstances, Prophet Muhammad (s) married several women during fifty-sixth year up to the sixtieth year of his life. He did not contract any marriage in the last three years of his life, following the revelation limiting the number of wives up to a maximum of four. This is the first time in the history of revealed scriptures that a limit on the number of wives was imposed and the terms of conduct were specified. The Prophet was instructed not to divorce any of his wives after this revelation [Qur'an 33:52]. All of the ladies he took as wives were either widowed or divorced, except A’ishah.
Prophet Muhammad lived a most simple, austere and modest life. He and his family used to go without cooked meal several days at a time, relying only on dates, dried bread and water. During the day he was the busiest man, as he performed his duties in many roles all at once as head of state, chief justice, commander-in-chief, arbitrator, instructor and family man. He was the most devoted man at night. He used to spend one- to two-thirds of every night in prayer and meditation. The Prophet's possession consisted of mats, blankets, jugs and other simple things even when he was the virtual ruler of Arabia. He left nothing to be inherited except a white mule (a gift from ), few ammunition and a piece of land that he had made a gift during his life time. Among his last words were: "We the community of Prophets are not inherited. Whatever we leave is for charity."