Surah Al-Baqarah — Ayah 190 (2:190)
وَقَٰتِلُواْ فِي سَبِيلِ ٱللَّهِ ٱلَّذِينَ يُقَٰتِلُونَكُمۡ وَلَا تَعۡتَدُوٓاْۚ إِنَّ ٱللَّهَ لَا يُحِبُّ ٱلۡمُعۡتَدِينَ ١٩٠
English translation (Saheeh International)
Fight in the way of Allāh those who fight against you but do not transgress. Indeed, Allāh does not like transgressors.
Brief commentary
Fight in order to raise the word of Allah, against those of the disbelievers who fight you to turn you away from the religion of Allah; but do not overstep the limits of Allah by killing children, women, the elderly, or by mutilating the dead and so on. Allah does not love those who overstep the limits He has established and made sacred.