He worked as a merchant, known for his fairness in trade, which led to his marriage to Khadijah (RA), a successful businesswoman who became his greatest supporter.

At the age of 40, during a retreat in the , he received the first revelation from Allah through the Angel Jibreel. This marked the beginning of his mission to call people to the oneness of God (Tawhid) and social justice. The early years in Makkah were defined by: Seerat-un-Nabi: Life of Prophet Muhammad | PDF - Scribd

At the age of 40, the Prophet received his first revelation from Allah (God) through the angel Gabriel. This marked the beginning of his prophethood, and he spent the next 23 years spreading the message of Islam. The Quran, the holy book of Islam, was revealed to him in stages, providing guidance for humanity.