Sahih al-Bukhari 907
صحيح البخاري#907SahihNarrated Abu `Abs:I heard the Prophet (ﷺ) saying, "Anyone whose feet are covered with dust in Allah's cause, shall be saved by Allah from the Hell-Fire
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: 11:31