Sahih al-Bukhari 2844
صحيح البخاري#2844Sahihحَدَّثَنَا مُوسَى، حَدَّثَنَا هَمَّامٌ، عَنْ إِسْحَاقَ بْنِ عَبْدِ اللَّهِ، عَنْ أَنَسٍ ـ رضى الله عنه ـ أَنَّ النَّبِيَّ صلى الله عليه وسلم لَمْ يَكُنْ يَدْخُلُ بَيْتًا بِالْمَدِينَةِ غَيْرَ بَيْتِ أُمِّ سُلَيْمٍ، إِلاَّ عَلَى أَزْوَاجِهِ فَقِيلَ لَهُ، فَقَالَ " إِنِّي أَرْحَمُهَا، قُتِلَ أَخُوهَا مَعِي ".
Narrated Anas:The Prophet (ﷺ) used not to enter any house in Medina except the house of Um Sulaim besides those of his wives when he was asked why, he said, "I take pity on her as her brother was killed in my company
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: 56:60