Sahih Muslim 549
صحيح مسلم#549Sahihوَحَدَّثَنِي أَبُو الطَّاهِرِ، وَيُونُسُ بْنُ عَبْدِ الأَعْلَى، قَالاَ أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ، عَنْ عَمْرِو بْنِ الْحَارِثِ، أَنَّ الْحُكَيْمَ بْنَ عَبْدِ اللَّهِ الْقُرَشِيَّ، حَدَّثَهُ أَنَّ نَافِعَ بْنَ جُبَيْرٍ وَعَبْدَ اللَّهِ بْنَ أَبِي سَلَمَةَ حَدَّثَاهُ أَنَّ مُعَاذَ بْنَ عَبْدِ الرَّحْمَنِ حَدَّثَهُمَا عَنْ حُمْرَانَ، مَوْلَى عُثْمَانَ بْنِ عَفَّانَ عَنْ عُثْمَانَ بْنِ عَفَّانَ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " مَنْ تَوَضَّأَ لِلصَّلاَةِ فَأَسْبَغَ الْوُضُوءَ ثُمَّ مَشَى إِلَى الصَّلاَةِ الْمَكْتُوبَةِ فَصَلاَّهَا مَعَ النَّاسِ أَوْ مَعَ الْجَمَاعَةِ أَوْ فِي الْمَسْجِدِ غَفَرَ اللَّهُ لَهُ ذُنُوبَهُ " .
Humran, the freed slave of 'Uthman b. 'Affan, reported on the authority of 'Uthman b. 'Affan that he heard Allah's Messenger (ﷺ) say:He who performed ablution for prayer and performed it properly and then went (to observe) obligatory prayer and offered it along with people or with the congregation or in the mosque, Allah would pardon his sins
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: 2:16