(24) باب الثِّيَابِ الْبِيضِ
Narrated Sa`d:
On the day of the battle of Uhud, on the right and on the left of the Prophet (ﷺ) were two men wearing white clothes, and I had neither seen them before, nor did I see them afterwards.
Reference: Sahih al-Bukhari 5826
In-book reference: Book 77, Hadith 43
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 72, Hadith 716