Sahih al-Bukhari 4389
صحيح البخاري#4389Sahihحَدَّثَنَا إِسْمَاعِيلُ، قَالَ حَدَّثَنِي أَخِي، عَنْ سُلَيْمَانَ، عَنْ ثَوْرِ بْنِ زَيْدٍ، عَنْ أَبِي الْغَيْثِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ " الإِيمَانُ يَمَانٍ، وَالْفِتْنَةُ هَا هُنَا، هَا هُنَا يَطْلُعُ قَرْنُ الشَّيْطَانِ ".
Narrated Abu Huraira:The Prophet (ﷺ) said, "Belief is Yemenite while afflictions appear from there (the east) from where the side of the head of Satan will appear
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: 64:412