Sahih al-Bukhari 6492
صحيح البخاري#6492Sahihحَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا مَهْدِيٌّ، عَنْ غَيْلاَنَ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ إِنَّكُمْ لَتَعْمَلُونَ أَعْمَالاً هِيَ أَدَقُّ فِي أَعْيُنِكُمْ مِنَ الشَّعَرِ، إِنْ كُنَّا نَعُدُّهَا عَلَى عَهْدِ النَّبِيِّ صلى الله عليه وسلم الْمُوبِقَاتِ. قَالَ أَبُو عَبْدِ اللَّهِ يَعْنِي بِذَلِكَ الْمُهْلِكَاتِ.
Narrated Ghailan:Anas said "You people do (bad) deeds (commit sins) which seem in your eyes as tiny (minute) than hair while we used to consider those (very deeds) during the life-time of the Prophet (ﷺ) as destructive 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 al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 81:81