Sahih al-Bukhari 2875
صحيح البخاري#2875SahihNarrated `Aisha:the mother of the faithful believers, I requested the Prophet (ﷺ) to permit me to participate in Jihad, but he said, "Your Jihad is the performance of Hajj
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: 56:91