If you mean when he was a child then yes. He got lost in Makkah once.
The Muslim him to be the last prophet of Islam through the holy Qur'an. They believe in his prophet-hood as he claimed to be a prophet. The Muslims believe him to be the Most Truthful person.
It was not night but day and this day was first day of prophet-hood of prophet Muhammad saw .
Prophet Muhammad
His early life is the proof of his honesty and piety even before his prophet-hood. The Muslim love him more than they love themselves. Each day of the life of their prophet is important to them.
At age 40 years when God revelation of Quran to prophet Muhammad (PBUH) started through angel Gabriel (Jibril).
Before the prophet-hood of Hazrat Muhammad (SAW), the Arabs worshiped idols, gods and godesses. Some of them were named: laat, hubbal, manaat, naila. The last prophet of Islam Hazrat Muhammad (SAW) preached the ONENESS of Almighty God (Allah in Arabic).
when he was at age 40 Prophets don't claim to be prophets. They are assigned the duty of Prophet-hood by Almighty God and then they proclaim that they had been assigned to preach to people that their Creator is Only ONE Almighty God Who deserves worship.
Muslims believe in Muhammad (PBUH) as the last God prophet to mankind. He is the perfect model to be adopted in their lives and practices. His teachings (sayings and practices) should be followed together with Quran guides and instructions. They consider prophet Muhammad as God messenger per God revelation of Quran to him through the Angel Gabriel (Jibril).
Muhammad is a prophet as assigned by God (Allah in Arabic) and per God revelation of Quran to him through the angel Gabriel (Jibril). refer to related question below for more information.
First of all you must use the correct term prophet.As regards the answer of your question, a lot of people know about prophet Muhammad(pbuh)old Testament testifies him as the last prophet of God who was sent by God to entire human beings.He was the part of the process of prophet-hood which started from Adam and passed through various stages of human history.
prophet hood (p.b.u.h)
Prophet-hood can't be acquired. It depends purely and entirely the Will of Almighty Allah. The Prophet s are duty bound to preached the message of Islam in the face of all opposition, hardships and difficulties. The prophets are disciples to no human being. They are directly taught and guided by Almighty Allah.