Sa`d reported that on the Day of Uhud I saw on the right side of Allah's Messenger (ﷺ) and on his left side two persons dressed in white clothes and whom I did not see before nor after that, and they were Gabriel and Michael (Allah be pleased with both of them).
Reference: Sahih Muslim 2306 a In-book : Book 43, Hadith 63 USC-MSA web (English) : Book 30, Hadith 5713 (deprecated)
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