وَإِن نَّكَثُوا أَيْمَانَهُم مِّن بَعْدِ عَهْدِهِمْ وَطَعَنُوا فِي دِينِكُمْ فَقَاتِلُوا أَئِمَّةَ الْكُفْرِ إِنَّهُمْ لَا أَيْمَانَ لَهُمْ لَعَلَّهُمْ يَنتَهُونَ
But if they break their pledges after their having made a treaty and revile your religion, then fight the leaders of unfaith—indeed, they have no [commitment to] pledges,—maybe they will desist.
Agha Ali Puya Commentary
Commentary on Quran 9:12
[Pooya/Ali Commentary 9:12] The idolaters not only broke their pledge after giving their word but also reviled Allah's religion. Against such specimens of faithlessness (leaders of infidelity) fighting has been enjoined. According to the Holy Prophet, a-immatal kufr (leaders of infidelity) are also those who opposed and fought against the divinely commissioned Imams of the Ahl ul Bayt. The Holy Prophet said: "O Ali you will fight against three types of apostates-nakithin (oath-breakers), qasitin (wrongdoers), and marigin (strayed ones)." Ali ibn abi Talib had recited this verse at the battle of Jamal and quoted the above noted prophecy of the Holy Prophet.