Q16: Who was the first one to believe in his message?

Answer: The first to believe in his message from among the men was Abu Bakr; from the women: Khadījah bint Khuwaylid; from the boys: ‘Ali ibn Abi Tālib; from the freed slaves: Zayd ibn Hārithah; and from the salves: Bilāl al-Habashi (may Allah be pleased with them), in addition to others.