Every child is born Muslim
Abu Huraira, narrated that the Prophetﷺsaid, “Every child is born with a true faith (i.e. to worship none but Allah Alone) but his parents convert him to Judaism or to Christianity or to Magainism, as an animal delivers a perfect baby animal. Do you find it mutilated?” Then Abu Huraira recited the ayath: “So set you (O Muhammad) your face towards the religion of pure Islâmic Monotheism Hanifa (worship none but Allâh Alone) Allâh’s Fitrah (i.e. Allâh’s Islâmic Monotheism), with which He has created mankind. No change let there be in Khalqillâh (i.e. the Religion of Allâh Islâmic Monotheism), that is the straight religion, but most of men know not. [Tafsir AtTabarî, Vol 21, Page 41] ” (30.30). Sahih Al Bukhari 1358 (Vol.2:440)