وَإِن نَّكَثُوٓا أَيْمَـٰنَهُم مِّنۢ بَعْدِ عَهْدِهِمْ وَطَعَنُوا فِى دِينِكُمْ فَقَـٰتِلُوٓا أَئِمَّةَ ٱلْكُفْرِ ۙ إِنَّهُمْ لَآ أَيْمَـٰنَ لَهُمْ لَعَلَّهُمْ يَنتَهُونَ

Wa-in nakathoo aymanahum min baAAdiAAahdihim wataAAanoo fee deenikum faqatilooa-immata alkufri innahum la aymana lahumlaAAallahum yantahoon

And if they break their oaths after their treaty and defame your religion, then combat the leaders of disbelief, for indeed, there are no oaths [sacred] to them; [fight them that] they might cease.