Allah's Messenger (ﷺ) said, "No child is born but has
the Islamic Faith, but its parents turn it into a Jew or a Christian.
It is as you help the animals give birth. Do you find among their
offspring a mutilated one before you mutilate them yourself?" The
people said, "O Allah's Messenger (ﷺ)! What do you think about those (of
them) who die young?" The Prophet (ﷺ) said, "Allah knows what they would
have done (were they to live)."
Sahih al-Bukhari Book 82, Hadith 6