Sahih al-Bukhari 6719
صحيح البخاري#6719Sahihحَدَّثَنَا أَبُو النُّعْمَانِ، حَدَّثَنَا حَمَّادٌ، وَقَالَ، " إِلاَّ كَفَّرْتُ يَمِينِي، وَأَتَيْتُ الَّذِي هُوَ خَيْرٌ ". أَوْ " أَتَيْتُ الَّذِي هُوَ خَيْرٌ، وَكَفَّرْتُ ".
Narrated Hammad:the same narration above (i.e. 709), "I make expiation for my dissolved oath, and I do what is better, or do what is better and make expiation
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: 84:12