Sahih Muslim 1690
صحيح مسلم#1690Sahihحَدَّثَنِي مُحَمَّدُ بْنُ عَبَّادٍ، وَابْنُ أَبِي عُمَرَ، قَالاَ حَدَّثَنَا مَرْوَانُ بْنُ مُعَاوِيَةَ، عَنْ يَزِيدَ، - هُوَ ابْنُ كَيْسَانَ - عَنْ أَبِي حَازِمٍ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَرَأَ فِي رَكْعَتَىِ الْفَجْرِ { قُلْ يَا أَيُّهَا الْكَافِرُونَ} وَ { قُلْ هُوَ اللَّهُ أَحَدٌ}
Abu Huraira reported that the Messenger of Allah (ﷺ) recited in the two (supererogatory) rak'ahs of the dawn (prayer):" Say: O unbelievers," (Qur'an, cix.) and" Say: Allah is one" (cxii)
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: 6:120