Sahih al-Bukhari 592
صحيح البخاري#592SahihNarrated `Aisha:Allah's Messenger (ﷺ) never missed two rak`at before the Fajr prayer and after the `Asr prayer openly and secretly
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: 9:67