Quran 9:13 — Ultimatum (Bara'ah)

Would you not fight people who violated their treaties, tried to banish the messenger, and they are the ones who started the war in the first place? Are you afraid of them? GOD is the One you are supposed to fear, if you are believers.

[9:12] If they violate their oaths after pledging to keep their covenants, and attack your religion, you may fight the leaders of paganism—you are no longer bound by your covenant with them—that they may refrain.

[9:14] You shall fight them, for GOD will punish them at your hands, humiliate them, grant you victory over them, and cool the chests of the believers.