Sahih al-Bukhari 149
صحيح البخاري#149Sahihحَدَّثَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ، قَالَ أَخْبَرَنَا يَحْيَى، عَنْ مُحَمَّدِ بْنِ يَحْيَى بْنِ حَبَّانَ، أَنَّ عَمَّهُ، وَاسِعَ بْنَ حَبَّانَ، أَخْبَرَهُ أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ أَخْبَرَهُ قَالَ لَقَدْ ظَهَرْتُ ذَاتَ يَوْمٍ عَلَى ظَهْرِ بَيْتِنَا، فَرَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم قَاعِدًا عَلَى لَبِنَتَيْنِ مُسْتَقْبِلَ بَيْتِ الْمَقْدِسِ.
Narrated `Abdullah bin `Umar:Once I went up the roof of our house and saw Allah's Messenger (ﷺ) answering the call of nature while sitting over two bricks facing Baitul-Maqdis (Jerusalem). (See Hadith No)
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: 4:15