Life
Youth
Born (possibly on April 20, 570) after his father Abd Allah had died, Muhammad came into the equivalent of a middle-class family. He first came under the care of his paternal grandfather Abd al-Muttalib, a former leader of the prestigious Hashim clan (which formed part of the tribe of Quraysh). Because the climate of Mecca had a reputation for unhealthiness, Muhammad's family gave him as an infant to a wet nurse Haleemah from a nomadic tribe, and he spent some time in the desert. (This practice occurred commonly among the Makkan middle and upper classes.) At the age of six Muhammad lost his mother Amina, and at the age of eight his grandfather Abd al-Muttalib. Muhammad now came under care of his uncle Abu Talib, the new leader of the Hashim clan of the Quraysh tribe - the most powerful in Mecca.
Mecca comprised a desert city-state whose main distinction lay in the Ka'aba, reputedly built by Abraham, the traditional forefather of the Arabs and Jews. Most of Makka's inhabitants worshipped idols. Though the city had no natural resources of its own, it functioned as a commercial centre, visited by many foreign traders. By all accounts Muhammad played a very active role in the civic life of his city. His uncle Zubair founded the order of chivalry known as the Hilf al-fudul, which assisted the oppressed of the city, local inhabitants and foreign visitors. Muhammad participated as an enthusiastic member.
Muhammad assisted is resolving disputes,and became known as Al-Ameen ("the trustworthy") because of his spotless reputation in all his dealings. Most notably when the Ka'aba became damaged in a flood, and the Makkan leaders all wanted the honour of fixing the rebuilt sacred Black Stone in place, Muhammad, as the judge chosen to solve the problem, proposed spreading a white sheet on the ground, placing the Black Stone in the middle, and asking the tribal leaders to carry it to its site by holding the corners of the sheet. Muhammad himself then fixed the stone in its place.
As a teenager Muhammad began accompanying his uncle on trading journeys to Syria. He thus became well-travelled and familiar with many foreign ways.
Middle years
About 595, on a trading journey, Muhammad met Khadijah, a rich widow then 40 years old. The young Muhammad (then 25) so impressed Khadijah that she offered him marriage. The marriage proved an important turning point in Muhammad's life. By Arab custom minors did not inherit, so Muhammad had received no inheritance from either his father or his grandfather, but by his marriage he obtained a large fortune. The sira records that Khadija bore Muhammad six children. Although Muhammad had no children with his later wives he did have a son with his Coptic slave girl Mary (Maryam). This son, called Ibrahim, died in infancy.
Late years
It is remarkable that Mohamed married in his late years with many women, he married initially with Khadija wiche was fourty years, and later with more than ten women, even he married with Aisha (عائشة) when she was six years , whereas he (Mohamed) was approximately fifty-two years ,probable for Islamic aims.[1]