Sahih al-Bukhari 4778
صحيح البخاري#4778Sahihحَدَّثَنَا يَحْيَى بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنِي ابْنُ وَهْبٍ، قَالَ حَدَّثَنِي عُمَرُ بْنُ مُحَمَّدِ بْنِ زَيْدِ بْنِ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ أَبَاهُ، حَدَّثَهُ أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ ـ رضى الله عنهما ـ قَالَ قَالَ النَّبِيُّ ـ صلى الله عليه وسلم ـ " مَفَاتِيحُ الْغَيْبِ خَمْسٌ " ثُمَّ قَرَأَ {إِنَّ اللَّهَ عِنْدَهُ عِلْمُ السَّاعَةِ}.
Narrated `Abdullah bin `Umar:The Prophet (ﷺ) said, "The keys of the Unseen are five." And then he recited: 'Verily, the knowledge of the Hour is with Allah (alone)
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: 65:300