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."  

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