"Will you not fight a people who have broken their oaths?"—meaning: they broke their covenant. "And plotted to expel the Messenger"—Al-Hasan said: from Medina. "And they began the attack on you the first time"—by declaring the fighting of your allies to be lawful. "Do you fear them?"—posed as a question; so you do not fight them? "But Allah is more entitled"—more worthy— "that you should fear Him, if you are believers"—meaning: if you are indeed believers.

Surah at-Tawbah from verse (14) to verse (16).