Sahih al-Bukhari 1165
صحيح البخاري#1165SahihNarrated `Aisha:The Prophet (ﷺ) used to make the two rak`at before the Fajr prayer so light that I would wonder whether he recited Al-Fatiha (or not)
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: 19:44