The Book of Destiny Kitab-ul-Qadr of Sahih Muslim

Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: The mother of every person gives him birth according to his true nature.It is subsequently his parents who make him a Jew or a Christian or a Magian. Had his parents been Muslim he would have also remained a Muslim.Every person to whom his mother gives birth (has two aspects of his life) ;when his mother gives birth Satan strikes him but it was not the case with Mary and her son (Jesus Christ).