Surah Al-Baqarah, ayah 191

وَٱقۡتُلُوهُمۡ حَيۡثُ ثَقِفۡتُمُوهُمۡ وَأَخۡرِجُوهُم مِّنۡ حَيۡثُ أَخۡرَجُوكُمۡۚ وَٱلۡفِتۡنَةُ أَشَدُّ مِنَ ٱلۡقَتۡلِۚ وَلَا تُقَٰتِلُوهُمۡ عِندَ ٱلۡمَسۡجِدِ ٱلۡحَرَامِ حَتَّىٰ يُقَٰتِلُوكُمۡ فِيهِۖ فَإِن قَٰتَلُوكُمۡ فَٱقۡتُلُوهُمۡۗ كَذَٰلِكَ جَزَآءُ ٱلۡكَٰفِرِينَ ١٩١

Waqtulūhum haythu thaqiftumūhum wa akhrijūhum min haythu akhrajūkum wal-fitnatu ashaddu minal-qatli walā tuqātilūhum 'indal-masjidil-harāmi hattā yuqātilūkum fīhi fa in qātalūkum faqtulūhum kadhālika jazā'ul-kāfirīn

And kill them [in battle] wherever you overtake them and expel them from wherever they have expelled you, and fitnah⁶⁹ is worse than killing. And do not fight them at al-Masjid al-Ḥarām until they fight you there. But if they fight you, then kill them. Such is the recompense of the disbelievers.