Al Anfal Ayah 39

وَقَـٰتِلُوهُمْ حَتَّىٰ لَا تَكُونَ فِتْنَةٌ وَيَكُونَ ٱلدِّينُ كُلُّهُۥ لِلَّهِ‌ۚ فَإِنِ ٱنتَهَوْاْ فَإِنَّ ٱللَّهَ بِمَا يَعْمَلُونَ بَصِيرٌ ٣٩ Fight against them until there is no more persecution—and ?your? devotion will be entirely to Allah. But if they desist, then surely Allah is All-Seeing of what they do.