Sahih al-Bukhari 6991
صحيح البخاري#6991Sahihحَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، حَدَّثَنَا اللَّيْثُ، عَنْ عُقَيْلٍ، عَنِ ابْنِ شِهَابٍ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنه ـ أَنَّ أُنَاسًا، أُرُوا لَيْلَةَ الْقَدْرِ فِي السَّبْعِ الأَوَاخِرِ، وَأَنَّ أُنَاسًا أُرُوا أَنَّهَا فِي الْعَشْرِ الأَوَاخِرِ، فَقَالَ النَّبِيُّ صلى الله عليه وسلم " الْتَمِسُوهَا فِي السَّبْعِ الأَوَاخِرِ ".
Narrated Ibn `Umar:Some people were shown the Night of Qadr as being in the last seven days (of the month of Ramadan). The Prophet (ﷺ) said, "Seek it in the last seven days (of Ramadan)
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: 91:10