Sahih al-Bukhari 450
صحيح البخاري#450Sahihحَدَّثَنَا يَحْيَى بْنُ سُلَيْمَانَ، حَدَّثَنِي ابْنُ وَهْبٍ، أَخْبَرَنِي عَمْرٌو، أَنَّ بُكَيْرًا، حَدَّثَهُ أَنَّ عَاصِمَ بْنَ عُمَرَ بْنِ قَتَادَةَ حَدَّثَهُ أَنَّهُ، سَمِعَ عُبَيْدَ اللَّهِ الْخَوْلاَنِيَّ، أَنَّهُ سَمِعَ عُثْمَانَ بْنَ عَفَّانَ، يَقُولُ عِنْدَ قَوْلِ النَّاسِ فِيهِ حِينَ بَنَى مَسْجِدَ الرَّسُولِ صلى الله عليه وسلم إِنَّكُمْ أَكْثَرْتُمْ، وَإِنِّي سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ " مَنْ بَنَى مَسْجِدًا ـ قَالَ بُكَيْرٌ حَسِبْتُ أَنَّهُ قَالَ ـ يَبْتَغِي بِهِ وَجْهَ اللَّهِ، بَنَى اللَّهُ لَهُ مِثْلَهُ فِي الْجَنَّةِ ".
Narrated 'Ubaidullah Al-Khaulani:I heard `Uthman bin `Affan saying, when people argued too much about his intention to reconstruct the mosque of Allah's Messenger (ﷺ), "You have talked too much. I heard the Prophet (ﷺ) saying, 'Whoever built a mosque, (Bukair thought that `Asim, another sub-narrator, added, "Intending Allah's Pleasure"), Allah would build for him a similar place in Paradise
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: 8:99