ثُمَّ قَالَ: الشُّهَدَاءُ خَمْسَةٌ الْمَطْعُونُ وَالْمَبْطُونُ وَالْغَرِيقُ وَصَاحِبُ الْهَدْمِ وَالشَّهِيدُ فِي سَبِيلِ اللَّهِ، وَقَالَ: لَوْ يَعْلَمُ النَّاسُ مَا فِي النِّدَاءِ وَالصَّفِّ الْأَوَّلِ، ثُمَّ لَمْ يَجِدُوا إِلَّا أَنْ يَسْتَهِمُوا لَاسْتَهَمُوا عَلَيْهِ.
صحیح بخاری · Hadith 653
Then the Prophet said, "Five are martyrs: One who dies of plague, one who dies of an Abdominal disease, one who dies of drowning, one who is buried alive (and) dies and one who is killed in Allah's cause." (The Prophet further said, "