Sahih al-Bukhari 2950
صحيح البخاري#2950SahihNarrated Ka`b bin Malik:The Prophet (ﷺ) set out on Thursday for the Ghazwa of Tabuk and he used to prefer to set out (i.e. travel) on Thursdays
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: 56:162