Messenger of Allah 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 Messenger of Allah 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)."
قَالَ رَسُولُ اللَّهِ ﷺ مَا مِنْ مَوْلُودٍ إِلاَّ يُولَدُ عَلَى الْفِطْرَةِ فَأَبَوَاهُ يُهَوِّدَانِهِ وَيُنَصِّرَانِهِ كَمَا تُنْتِجُونَ الْبَهِيمَةَ هَلْ تَجِدُونَ فِيهَا مِنْ جَدْعَاءَ حَتَّى تَكُونُوا أَنْتُمْ تَجْدَعُونَهَا قَالُوا يَا رَسُولَ اللَّهِ أَفَرَأَيْتَ مَنْ يَمُوتُ وَهْوَ صَغِيرٌ قَالَ {اللَّهُ أَعْلَمُ بِمَا كَانُوا عَامِلِينَ}