At Tawbah, 123 Ayah
9:123
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ قَٰتِلُواْ ٱلَّذِينَ يَلُونَكُم مِّنَ ٱلۡكُفَّارِ وَلۡيَجِدُواْ فِيكُمۡ غِلۡظَةٗۚ وَٱعۡلَمُوٓاْ أَنَّ ٱللَّهَ مَعَ ٱلۡمُتَّقِينَ ١٢٣
Yā 'Ayyuhā Al-Ladhīna 'Āmanū Qātilū Al-Ladhīna Yalūnakum Mina Al-Kuffāri Wa Līajidū Fīkum Ghilžatan ۚ Wa A`lamū 'Anna Al-Laha Ma`a Al-Muttaqīna
O you who have believed, fight those adjacent to you of the disbelievers and let them find in you harshness. And know that Allah is with the righteous.