I heard Allah's Messenger (ﷺ) as saying: There would lie open for a group of Muslims, or for a group of believers, the treasures of the family of Kisra which would be in the white (palace). In a version of Qutaiba there is definitely the word "Muslim".
Reference: Sahih Muslim 2919 b In-book : Book 54, Hadith 97 USC-MSA web (English) : Book 41, Hadith 6977 (deprecated)
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