and Allah said "And proclaim the pilgramage among men; they will come to thee on foot and on every kind of camel. Lean on account of Journeys through deep and distant mountain highways" Surah 22 ~ Al Hajj Part 27
Much later Muhammad (pbuh) returned to Khadijah from Mount Hira [Picture] and said: "Wrap me up! Wrap me up!" She wrapped him in a garment until his fear was dispelled. He told Khadijah what had occurred and that he was becoming either a soothsayer or one smitten with madness. She replied: "Allah forbid! He will surely not let such a thing happen, for you speak the truth, you are faithful in trust, you bear the afflictions of the people, you spend in good works what you gain in trade, you are hospitable and you assist your fellow men. Have you seen anything terrible?" Muhammad replied: "Yes," and told her what he had seen. Whereupon, Khadijah said: "Rejoice, O dear husband and be cheerful. He is whose hands stand Khadijah's life bears witness to the truth of this fact, that you will be the prophet to this people." Then she arose and went to her cousin Waraqa Ibn Naufal, who was old and blind and who knew the Scriptures of the Jews and Christians, and is stated to have translated them into Arabic. When she told him of what she had heard, he cried out: "Holy! Holy! Verily, this is the Namus (The Holy Spirit) who came to Moses. He will be the prophet of his people. Tell him this and bid him to be brave at heart." When the two men met subsequently in the street, the blind old student of the Jewish and Christian Scriptures spoke of his faith and trust: "I swear by Him in Who hand Waraqa's life is, Allah has chosen you to be the prophet of this people. They will call you a liar, they will persecute you, they will banish you, and they will fight against you. Oh, that I could live to those days. I would fight for these." And he kissed him on the forehead.
The first vision was followed by a considerable period, during which Muhammad suffered much mental depression. The angel spoke to the grieved heart of hope and trust and of the bright future when he would see the people of the earth crowding into the one true faith. His destiny was unfolded to him, when, wrapped in profound meditation, melancholy and sad, he felt himself called by a voice from heaven to arise and preach.
O you (Muhammad) enveloped (in garments)! Arise and warn! And your Lord (Allah) magnify! (74:1-3 Quran)
He arose and engaged himself in the work to which he was called. Khadijah was the first to accept his mission. She was to believe in the revelations, to abandon the idolatry of her people and to join him in purity of heart and in offering up prayers to Allah the Almighty.
At the beginning of his mission, Muhammad (pbuh) - here in after called the Prophet - opened his soul only to those who were attached to him and tried to free them from the gross practices of their forefathers. After Khadijah, his cousin Ali was the next companion. The Prophet used often to go into the desert around Mecca (Makkah) with his wife and young cousin that they might together offer their heart felt thanks to the Lord of all nations for His manifold blessings. Once they were surprised by Abu Talib, the father of Ali. He said to the Prophet: "O son of my brother, what is this religion you are following?" "It is the religion of Allah of His Angels, of His Messengers and of our ancestor Abraham," answered the Prophet. "Allah has sent me to His servants, to direct them towards the truth, and you, O my uncle, are the most worthy of all. It is meet that I should thus call upon you and it is meet that you should accept the truth and help in spreading it."
Abu Talib replied: "Son of my brother, I cannot abjure the religion of my fathers; but by the Supreme Lord, while I am alive, none shall dare to injure you." Then turning towards Ali, the venerable chief asked what religion was his. Ali answered: "O father, I believe in Allah and His Prophet and go with him." Abu Talib replied: "Well my son, he will not call you to anything except what is good, therefore you are free to go with him."
After Ali, Muhammad's adopted son Zaid became a convert to the new faith. He was followed by Abu Bakr, a leading member of the Quraish tribe and an honest, wealthy merchant who enjoyed great consideration among his compatriots. He was but two years younger than the Prophet. His adoption of the new faith was of great moral effect. Soon after, five notables presented themselves before the Prophet and accepted Islam. Several converts also came from lower classes of the Arabs to adopt the new religion.
For three weary long years, the Prophet labored very quietly to deliver his people from the worship of idols. Polytheism was deeply rooted amongst the people. It offered attractions, which the new faith in its purity did not possess. The Quraish had personal material interests in the old worship, and their prestige was dependent upon its maintenance. The Prophet had to contend with the idolatrous worship of its followers and to oppose the ruling Monarchy, which governed its destinies.