Sahih Muslim 1544
صحيح مسلم#1544Sahihحَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا مُعَاذُ بْنُ هِشَامٍ، حَدَّثَنِي أَبِي، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، قَالَ حَدَّثَنَا أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ، أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ، يَقُولُ وَاللَّهِ لأُقَرِّبَنَّ بِكُمْ صَلاَةَ رَسُولِ اللَّهِ صلى الله عليه وسلم . فَكَانَ أَبُو هُرَيْرَةَ يَقْنُتُ فِي الظُّهْرِ وَالْعِشَاءِ الآخِرَةِ وَصَلاَةِ الصُّبْحِ وَيَدْعُو لِلْمُؤْمِنِينَ وَيَلْعَنُ الْكُفَّارَ .
Abu Salama b. 'Abd al-Rahman is reported to have said that he had heard Abu Huraira saying:I would say prayer along with you which is near to the prayer of the Messenger of Allah (ﷺ). and Abu Huraira recited Qunut in the noon and in the 'Isya' and in the morning prayer, and invoked blessing (of Allah) upon Muslims-and curse upon the unbelievers
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: 5:377