It was in the midst of such conditions and environments that Muhammad was born in 569 after Christ. His father, 'Abdullah had died some weeks earlier, and it was his grandfather who took him in charge. According to the prevailing custom, the child was entrusted to a Bedouin foster-mother, with whom he passed several years in the desert. All biographers state that the infant prophet sucked only one breast of his foster-mother, leaving the other for the sustenance of his foster-brother. When the child was brought back home, his mother, Aminah, took him to his maternal uncles at Madinah to visit the tomb of 'Abdullah. During the return journey, he lost his mother who died a sudden death. At Mecca, another bereavement awaited him, in the death of his affectionate grandfather. Subjected to such privations, he was at the age of eight, consigned at last to the care of his uncle, Abu-Talib, a man who was generous of nature but always short of resources and hardly able to provide for his family.
Young Muhammad had therefore to start immediately to earn his livelihood; he served as a shepherd boy to some neighbors. At the age of ten he accompanied his uncle to Syria when he was leading a caravan there. No other travels of Abu-Talib are mentioned, but there are references to his having set up a shop in Mecca. (Ibn Qutaibah, Ma'arif). It is possible that Muhammad helped him in this enterprise also.
By the time he was twenty-five, Muhammad had become well known in the city for the integrity of his disposition and the honesty of his character. A rich widow, Khadijah, took him in her employ and consigned to him her goods to be taken for sale to Syria. Delighted with the unusual profits she obtained as also by the personal charms of her agent, she offered him her hand. According to divergent reports, she was either 28 or 40 years of age at that time, (medical reasons prefer the age of 28 since she gave birth to five more children). The union proved happy. Later, we see him sometimes in the fair of Hubashah (Yemen), and at least once in the country of the 'Abd al-Qais (Bahrain-Oman), as mentioned by Ibn Hanbal. There is every reason to believe that this refers to the great fair of Daba (Oman), where, according to Ibn al-Kalbi (cf. Ibn Habib, Muhabbar), the traders of China, of Hind and Sind (India, Pakistan), of Persia, of the East and the West assembled every year, traveling both by land and sea. There is also mention of a commercial partner of Muhammad at Mecca. This person, Sa'ib by name reports: "We relayed each other; if Muhammad led the caravan, he did not enter his house on his return to Mecca without clearing accounts with me; and if I led the caravan, he would on my return enquire about my welfare and speak nothing about his own capital entrusted to me."