Read and reflect on verse 201 from Surah Al-Baqara: Fight during the sacred months if you are attacked: for a violation of sanctity is [subject to the law of] just retribution. Thus, if anyone commits a...
الشَّهْرُ الْحَرَامُ بِالشَّهْرِ الْحَرَامِ وَالْحُرُمَاتُ قِصَاصٌ ۚ فَمَنِ اعْتَدَىٰ عَلَيْكُمْ فَاعْتَدُوا عَلَيْهِ بِمِثْلِ مَا اعْتَدَىٰ عَلَيْكُمْ ۚ وَاتَّقُوا اللَّهَ وَاعْلَمُوا أَنَّ اللَّهَ مَعَ الْمُتَّقِينَ
Fight during the sacred months if you are attacked: for a violation of sanctity is [subject to the law of] just retribution. Thus, if anyone commits aggression against you, attack him just as he has attacked you - but remain conscious of God, and know that God is with those who are conscious of Him.