Sahih Muslim 6568
صحيح مسلم#6568Sahihحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَأَبُو كُرَيْبٍ قَالاَ حَدَّثَنَا أَبُو أُسَامَةَ، عَنِ الْوَلِيدِ بْنِ، كَثِيرٍ عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ عَطَاءٍ، عَنْ عَطَاءِ بْنِ يَسَارٍ، عَنْ أَبِي سَعِيدٍ، وَأَبِي، هُرَيْرَةَ أَنَّهُمَا سَمِعَا رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " مَا يُصِيبُ الْمُؤْمِنَ مِنْ وَصَبٍ وَلاَ نَصَبٍ وَلاَ سَقَمٍ وَلاَ حَزَنٍ حَتَّى الْهَمِّ يُهَمُّهُ إِلاَّ كُفِّرَ بِهِ مِنْ سَيِّئَاتِهِ " .
Abu Sa'id and abu Huraira reported that they heard Allah's Messenger (ﷺ) as saying:Never a believer is stricken with discomfort, hardship or illness, grief or even with mental worry that his sins are not expiated for him
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: 45:66