Mishkat al-Masabih #3650

'Abu Huraira reported God’s Messenger as saying, “Whom do you reckon to be the martyr among you?” His hearers replied, “The one who is killed in God’s path is the martyr, Messenger of God.” He said, “The martyrs among my people would then be few. He who is killed in God’s path is a martyr, he who dies in God’s path is a martyr, he who dies of plague is a martyr, and he who dies of a disease in the belly is a martyr.” Muslim transmitted it.