The first of all to believe in Muhammads message was Khadijah his wife. Abu Bakr the best friend of Muhammad was the first man to believe in his message and Ali bin Abi Talib, his cousin, was the first youth to accept Islam.
Muhammad continued to call for Islam in secrete. And many people joined him. His call was particularly appealing to people of high moral, to the weak, the poor and slaves.
The number of Muhammad's followers grew by day, however slowly. They needed a place to get together in secrete to learn more about their new religion. Al Arqam bin Abi Al Arqam one of the followers of Muhammad offered his house as a place for their nightly meeting.
