Sahih al-Bukhari 3801
صحيح البخاري#3801Sahihحَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا غُنْدَرٌ، حَدَّثَنَا شُعْبَةُ، قَالَ سَمِعْتُ قَتَادَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " الأَنْصَارُ كَرِشِي وَعَيْبَتِي، وَالنَّاسُ سَيَكْثُرُونَ وَيَقِلُّونَ، فَاقْبَلُوا مِنْ مُحْسِنِهِمْ، وَتَجَاوَزُوا عَنْ مُسِيئِهِمْ ".
Narrated Anas bin Malik:The Prophet (ﷺ) said, "The Ansar are my near companions to whom I confided my private secrets, People will go on increasing but the Ansar will go on decreasing; so accept the good of the good-doers amongst them and excuse the wrong-doers amongst them
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: 63:26