Sahih Muslim 6760
صحيح مسلم#6760Sahihحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَأَبُو كُرَيْبٍ قَالاَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، ح وَحَدَّثَنَا ابْنُ، نُمَيْرٍ حَدَّثَنَا أَبِي كِلاَهُمَا، عَنِ الأَعْمَشِ، بِهَذَا الإِسْنَادِ . فِي حَدِيثِ ابْنِ نُمَيْرٍ " مَا مِنْ مَوْلُودٍ يُولَدُ إِلاَّ وَهُوَ عَلَى الْمِلَّةِ " . وَفِي رِوَايَةِ أَبِي بَكْرٍ عَنْ أَبِي مُعَاوِيَةَ " إِلاَّ عَلَى هَذِهِ الْمِلَّةِ حَتَّى يُبَيِّنَ عَنْهُ لِسَانُهُ " . وَفِي رِوَايَةِ أَبِي كُرَيْبٍ عَنْ أَبِي مُعَاوِيَةَ " لَيْسَ مِنْ مَوْلُودٍ يُولَدُ إِلاَّ عَلَى هَذِهِ الْفِطْرَةِ حَتَّى يُعَبِّرَ عَنْهُ لِسَانُهُ " .
It is reported on the authority of Abu Mu'awiya that (the Holy Prophet) said:Every new-born babe is born on the millat (of Islam and he) remains on this until his tongue is enabled to express himself. This hadith has been narratted on the authority of Abu Mu'awiya through another chain of transmitters (and the words are):" Every child is born but on this Fitra so long as he does not express himself with his tongue
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 46:38