Sahih al-Bukhari 5253
صحيح البخاري#5253SahihNarrated Ibn `Umar:(Divorcing my wife during her menses) was counted as one legal divorce
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: 68:3