Khadijah married Muhammad (peace be upon him) at the age of 40. Khadijah was a wealthy businesswoman who was impressed by Muhammad's honesty and integrity, and she proposed marriage to him. At the time of their marriage, Muhammad was 25 years old and working as a trader in Khadijah's business. They were married for 25 years until Khadijah's death, and she was the first person to accept Islam and support the Prophet Muhammad in his mission. Their marriage was a strong and loving partnership that set a positive example for all future Muslim marriages.