Sahih al-Bukhari 3870
صحيح البخاري#3870Sahihحَدَّثَنَا عُثْمَانُ بْنُ صَالِحٍ، حَدَّثَنَا بَكْرُ بْنُ مُضَرَ، قَالَ حَدَّثَنِي جَعْفَرُ بْنُ رَبِيعَةَ، عَنْ عِرَاكِ بْنِ مَالِكٍ، عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ بْنِ عُتْبَةَ بْنِ مَسْعُودٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ ـ رضى الله عنهما أَنَّ الْقَمَرَ، انْشَقَّ عَلَى زَمَانِ رَسُولِ اللَّهِ صلى الله عليه وسلم.
Narrated `Abdullah bin `Abbas:During the lifetime of Allah's Messenger (ﷺ) the moon was split (into two pieces)
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: 63:95