Surely Allah has purchased of the believers their lives and their belongings and in return has promised that they shall have Paradise. They fight in the Way of Allah, and slay and are slain. Such is the promise He has made incumbent upon Himself in the Torah, and the Gospel, and the Qur'an. Who is more faithful to his promise than Allah? Rejoice, then, in the bargain you have made with Him. That indeed is the mighty triumph.