Qur'an 22:39 · Al-Hajj

أُذِنَ لِلَّذِينَ يُقَٰتَلُونَ بِأَنَّهُمْ ظُلِمُوا۟ ۚ وَإِنَّ ٱللَّهَ عَلَىٰ نَصْرِهِمْ لَقَدِيرٌ

(39) Permission [to fight] has been given to those who are being fought,[929] because they were wronged. And indeed, Allāh is competent to give them victory.