"There are five things, whoever dies of any of them is a martyr. The one who is killed in the cause of Allah is a martyr; the one who dies of an abdominal complaint in the cause of Allah is a martyr; the one who dies of the plague in the cause of Allah is a martyr; and the woman who dies in childbirth in the cause of Allah is a martyr." (Using translation from Nasāʾī 3163)
عَنِ النَّبِيِّ ﷺ قَالَ خَمْسٌ مَنْ قُبِضَ فِي شَيْءٍ مِنْهُنَّ فَهُوَ شَهِيدٌ الْقَتِيلُ فِي سَبِيلِ اللهِ شَهِيدٌ وَالْغَرِيقُ فِي سَبِيلِ اللهِ شَهِيدٌ وَالْمَطْعُونُ فِي سَبِيلِ اللهِ شَهِيدٌ وَالْمَبْطُونُ فِي سَبِيلِ اللهِ شَهِيدٌ وَالنُّفَسَاءُ فِي سَبِيلِ اللهِ شَهِيدٌ