Sahih al-Bukhari 3458
صحيح البخاري#3458SahihNarrated `Aisha:That she used to hate that one should keep his hands on his flanks while praying. She said that the Jews used to do so
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: 60:125