AN NISAA' — Ayat 74

فَلْيُقَاتِلْ فِي سَبِيلِ اللّهِ الَّذِينَ يَشْرُونَ الْحَيَاةَ الدُّنْيَا بِالآخِرَةِ وَمَن يُقَاتِلْ فِي سَبِيلِ اللّهِ فَيُقْتَلْ أَو يَغْلِبْ فَسَوْفَ نُؤْتِيهِ أَجْرًا عَظِيمًا

So let those fight in the cause of Allah who sell the life of this world for the Hereafter. And he who fights in the cause of Allah and is killed or achieves victory - We will bestow upon him a great reward.