Khadīja b. Khuwaylid (d. 620). Even before her famous marriage to the Prophet Muhammad, she was an important figure in her own right, being a successful merchant and one of the elite figures of Mecca. She played a central role in supporting and propagating the new faith of Islam and has the distinction of being the first Muslim. As the Prophet Muhammad himself is believed to have said in a hadith preserved in Sahih Muslim: “God Almighty never granted me anyone better in this life than her. She accepted me when people rejected me; she believed in me when people doubted me; she shared her wealth with me when people deprived me; and God granted me children only through her.” Indeed, another of the most important women of early Islam, Fāṭima al-Zahrā’, was the daughter of the Prophet by Khadīja and it is only through Fāṭima (especially through her two sons, al-Hasan and al-Husayn) that the lineage of the Prophet Muhammad is preserved. These facts make Fāṭima and her mother Khadīja among the most revered female personages in Islamic history.
“The best among you the one who best of all treats the wife and daughters” Prophet Muhammad.http://www.loonwatch.com/2014/03/15-important-muslim-women-in-history/