Al-Baqarah - 2:190

وَقَاتِلُواْ فِي سَبِيلِ اللّهِ الَّذِينَ يُقَاتِلُونَكُمْ وَلاَ تَعْتَدُواْ إِنَّ اللّهَ لاَ يُحِبِّ الْمُعْتَدِينَ
[2:190]
And fight in the way of Allah with those who fight with you, and do not exceed the limits, surely Allah does not love those who exceed the limits.
Fight in the cause of Allah those who fight you, but do not transgress limits; for Allah loveth not transgressors.
Fight in the way of Allah against those who fight against you, but begin not hostilities. Lo! Allah loveth not aggressors.