The first young person to accept Islam was Ali ibn Abi Talib.
Ali was the cousin of the Prophet Muhammad and was very close to him. He was born into a family of great honor and prestige in Mecca, but despite his young age, he recognized the truth of Islam and was one of the earliest converts to the faith.
Ali was only about ten years old when he embraced Islam. He grew up in the household of the Prophet Muhammad, and was raised under his guidance and teachings. Because of his young age, Ali was not initially involved in the public proclamation of Islam, but he was a loyal supporter of the Prophet and his mission.
Later on, Ali would become one of the most important figures in Islamic history. He became the fourth caliph of Islam and played a key role in the development of Islamic jurisprudence and the spread of Islam throughout the Arabian Peninsula and beyond.