Sahih al-Bukhari 4613
صحيح البخاري#4613SahihNarrated `Aisha:This Verse: "Allah will not punish you for what is unintentional in your oaths." (5.89) was revealed about a man's statement (during his talk), "No, by Allah," and "Yes, by Allah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 65:135