It wasnarrated from Hudhaifah bin Asid that the Prophet (ﷺ) ledthem outand said:
"Pray for a brother of yours who has died in a landotherthan yours." They said: "Who is he?" He said: "Najashi." (FR)
English reference (FR): Vol. 1, Book 6, Hadith 1537 (FR)
Arabic reference (FR): Book 6, Hadith 1604 (FR)