Sahih al-Bukhari 2947
صحيح البخاري#2947SahihNarrated Ka`b bin Malik:Whenever Allah's Messenger (ﷺ) intended to lead a Ghazwa, he would use an equivocation from which one would understand that he was going to a different destination
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: 56:159