ملخص الدراسة:

When Islam came into being in Mecca, the Messenger (peace be upon him) and his companions faced a strong resistance, which made him migrate to al-Madina al-Munawwarah whose people welcomed him and pledged allegiance to him, there the Islamic state was established in al-Madina al-Munawwarah . The study deals with the Messenger’s activities in al-Madina al-Munawwarah. When the Messenger (peace be upon him) entered al-Madina, he started setting up the Islamic state on solid basis through establishing some institutions and organizations among which the building of the Mosque was but the first step that led to the social and religious construction of the new state. Then he declared the fraternity between al-mahajireen and al-ansar to solve the social and economic problems faced by al-mahajireen upon their arrival at al-Madina al-Munawwarah . Then the Messenger (peace be upon him) began to organize the relationships among the people of al-Madina on the one hand and establish the pillars of the new state on the other hand. Thus the Messenger (peace be upon him) forwarded the constitution for the Muslims to organize their life in al-Madina and determine their relationships with the neighbouring cities. Such constitution reflected the legislation and comprehended the conditions of the people. Then, the Messenger (peace be upon him) turned to the Islamic army trying to organize to exalt the Word of Allah and protect the Islamic community.