The Prophet [SAW] said: "Whoever fights to protect his wealth and is killed, he is a martyr. Whoever fights to protect himself, he is a martyr. Whoever fights to protect his family is a martyr." (Using translation from Nasāʾī 4094)  

عَنِ النَّبِيِّ ﷺ قَالَ «مَنْ قَاتَلَ دُونَ مَالِهِ فَقُتِلَ فَهُوَ شَهِيدٌ وَمَنْ قَاتَلَ دُونَ دَمِهِ فَهُوَ شَهِيدٌ وَمَنْ قَاتَلَ دُونَ أَهْلِهِ فَهُوَ شَهِيدٌ»