Fight in the cause of God and know that God is the Hearer, the Knowledgeable.
Translation endnotes
[2:244] The Quran invites people to peace (2:208). Thus, the universal greeting salam or salamun alaikum continuously invites people to peace (4:94). War is permitted only in self-defense. For the principles of war, see 60:7-9 and 9:5-29.