Al Anfal, 39 Ayah
8:39
وَقَٰتِلُوهُمۡ حَتَّىٰ لَا تَكُونَ فِتۡنَةٞ وَيَكُونَ ٱلدِّينُ كُلُّهُۥ لِلَّهِۚ فَإِنِ ٱنتَهَوۡاْ فَإِنَّ ٱللَّهَ بِمَا يَعۡمَلُونَ بَصِيرٞ ٣٩
Wa Qātilūhum Ĥattá Lā Takūna Fitnatun Wa Yakūna Ad-Dīnu Kulluhu Lillahi ۚ Fa'ini Antahaw Fa'inna Al-Laha Bimā Ya`malūna Başīrun
And fight them until there is no fitnah and [until] the religion, all of it, is for Allah . And if they cease - then indeed, Allah is Seeing of what they do.