Sahih Muslim 876
صحيح مسلم#876Sahihحَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ الْحُلْوَانِيُّ، حَدَّثَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ بْنِ سَعْدٍ، حَدَّثَنَا أَبِي، عَنْ صَالِحٍ، عَنِ ابْنِ شِهَابٍ، أَنَّ مَحْمُودَ بْنَ الرَّبِيعِ الَّذِي، مَجَّ رَسُولُ اللَّهِ صلى الله عليه وسلم فِي وَجْهِهِ مِنْ بِئْرِهِمْ أَخْبَرَهُ أَنَّ عُبَادَةَ بْنَ الصَّامِتِ أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ صَلاَةَ لِمَنْ لَمْ يَقْرَأْ بِأُمِّ الْقُرْآنِ " .
Mahmud b. al-Rabi', on whose face the Messenger of Allah (ﷺ) squirted water from the well, reported on the authority of 'Ubada b. as- Samit that the Messenger of Allah (ﷺ) said:He who does not recite Umm al-Qur'an is not credited with having observed prayer
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: 4:39