Riyad us-Salihin Hadith 1354

The Messenger of Allah (ﷺ) said, "Whom do you reckon to be martyr amongst you?" The Companions replied: "The one who is killed in Allah's way." He said, "In that case, the martyrs among my people would be few." The Companions asked: "O Messenger of Allah! Then who are the martyrs?" He replied, "He who is killed in the way of Allah is a martyr; he who dies naturally in the Cause of Allah is a martyr; he who dies of plague is a martyr; and he who dies of a belly disease is a martyr; and he who is drowned is a martyr." [Muslim]. This Hadith shows the care Allah has for this Ummah, which is the best Ummah of mankind. (Editor's Note)