question #2 Sahih al-Bukhari 2829, Book 56, Hadith 45 : What are the different causes of death that are regarded as martyrdom in Islamic tradition?

Allah’s Messenger (ﷺ) said, “Five are regarded as martyrs: They are those who die because of plague,
Abdominal disease, drowning or a falling building etc., and the martyrs in Allah’s Cause.”