Sahih al-Bukhari 1302
صحيح البخاري#1302Sahihحَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا غُنْدَرٌ، حَدَّثَنَا شُعْبَةُ، عَنْ ثَابِتٍ، قَالَ سَمِعْتُ أَنَسًا ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " الصَّبْرُ عِنْدَ الصَّدْمَةِ الأُولَى ".
Narrated Anas:The Prophet (ﷺ) said, "The real patience is at the first stroke of a calamity
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: 23:60