Muhammad's life is traditionally defined into two periods: pre-hijra (emigration) in Mecca (from 570 to 622), and post-hijra in Medina (from 622 until 632). Muhammad is said to have had thirteen wives or concubines (there are differing accounts on the status of some of them as wife or concubine) All but two of his marriages were

contracted after the migration to Medina.

At the age of 25, Muhammad married Khadijah bint Khuwaylid. The marriage lasted for 25 years and was a happy one. Muhammad relied upon Khadija in many ways and did not enter into marriage with another woman during this marriage. After the death of Khadija, it was suggested to Muhammad by Khawla bint Hakim, that he should marry Sawda bint Zama, a Muslim widow, or Aisha, the six- or seven-year-old daughter of Abu Bakr. Muhammad is said to have asked her to arrange for him to marry both. Later, Muhammad married additional wives nine of whom survived him. Aisha, who became known as Muhammad's favourite wife, survived him by many decades and was instrumental in helping to bring together the scattered sayings of Muhammad that would form the Hadith literature of Islam.

Muhammad did his own household chores and helped with housework, such as preparing food, sewing clothes and repairing shoes. Muhammad is also said to have had accustomed his wives to dialogue; he listened to their advice, and the wives debated and even argued with him.

Khadijah is said to have borne Muhammad four daughters (Ruqayyah bint Muhammad, Umm Kulthum bint Muhammad, Zainab bint Muhammad, Fatimah Zahra) and two sons (Abd-Allah ibn Muhammad and Qasim ibn Muhammad) who both died in childhood. All except two of his daughters, Fatimah and Zainab, died before him. Shi'a scholars contend that Fatimah was Muhammad's only daughter. Maria al-Qibtiyya bore him a son named Ibrahim ibn Muhammad, but the child died when he was two years old.

…

Think about it!Why Allah ….?……

Browsing Time!!http://en.wikipedia.org/wiki/Family_tree_of_Muhammadhttp://everything2.com/title/Wives+of+Muhammad