5.Marriage to Khadijah .
When the Messenger of Allah (peace be upon him) was twenty-five years old, he married Khadijah bint Khuwaylid, an honourable Quraish woman of excellent character. She was a successful business woman with fine intellect and great wealth. When Khadijah was informed about the Prophet’s behaviour, truthfulness and outstanding ability, she expressed a wish to marry him.
Soon afterwards, Khadijah married the Prophet (peace be upon him) and the marriage proved a very happy one. Khadijah was the first woman that the Messenger of Allah (peace be upon him) married, and she bore him all his children except Ibraĥim.
Khadijah bore the Prophet (peace be upon him) four daughters: Zaynab, Ruqayyah, Umm Kulthum, Fatimah and two sons: al-Qasim and ‘Abdullah who was also known as at-Tayyib and at-T;hir.