Abu al-Tufayl narrates from Hudhayfah bin Asid (may Allah be pleased with him) that when the Messenger of Allah (peace and blessings be upon him) was informed of the death of the Negus, he (peace and blessings be upon him) said: "Offer the funeral prayer for a brother of yours who has died in a land other than your own city."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3034