Sahih al-Bukhari 1385
Book 23: Funerals (Al-Janaa'iz) · Narrated by Abu Huraira
Arabic
حَدَّثَنَا آدَمُ، حَدَّثَنَا ابْنُ أَبِي ذِئْبٍ، عَنِ الزُّهْرِيِّ، عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم " كُلُّ مَوْلُودٍ يُولَدُ عَلَى الْفِطْرَةِ، فَأَبَوَاهُ يُهَوِّدَانِهِ أَوْ يُنَصِّرَانِهِ أَوْ يُمَجِّسَانِهِ، كَمَثَلِ الْبَهِيمَةِ تُنْتَجُ الْبَهِيمَةَ، هَلْ تَرَى فِيهَا جَدْعَاءَ ".
English translation
Narrated Abu Huraira:The Prophet (ﷺ) said, "Every child is born with a true faith of Islam (i.e. to worship none but Allah Alone) and his parents convert him to Judaism or Christianity or Magianism, as an animal delivers a perfect baby animal. Do you find it mutilated?
Reference: Sahih al-Bukhari 1385, Book of Funerals (Al-Janaa'iz). English translation by Dr. Muhammad Muhsin Khan.