28:15
وَ دَخَلَ ٱلْ مَدِينَةَ عَلَىٰ حِينِ غَفْلَةٍ مِّنْ أَهْلِ هَا فَ وَجَدَ فِي هَا رَجُلَيْنِ يَقْتَتِلَ انِ هَٰذَا مِن شِيعَتِ هِۦ وَ هَٰذَا مِنْ عَدُوِّ هِۦ فَ ٱسْتَغَٰثَ هُ ٱلَّذِى مِن شِيعَتِ هِۦ عَلَى ٱلَّذِى مِنْ عَدُوِّ هِۦ فَ وَكَزَ هُۥ مُوسَىٰ فَ قَضَىٰ عَلَيْ هِ قَالَ هَٰذَا مِنْ عَمَلِ ٱل شَّيْطَٰنِ إِنَّ هُۥ عَدُوٌّ مُّضِلٌّ مُّبِينٌ
And he entered the city at a time of inattention by its people and found therein two men fighting: one from his faction and one from among his enemy. And the one from his faction called for help to him against the one from his enemy, so Moses struck him and [unintentionally] killed him. [Moses] said, "This is from the work of Satan. Indeed, he is a manifest, misleading enemy."
2:253
تِلْكَ ٱل رُّسُلُ فَضَّلْ نَا بَعْضَ هُمْ عَلَىٰ بَعْضٍ مِّنْ هُم مَّن كَلَّمَ ٱللَّهُ وَ رَفَعَ بَعْضَ هُمْ دَرَجَٰتٍ وَ ءَاتَيْ نَا عِيسَى ٱبْنَ مَرْيَمَ ٱلْ بَيِّنَٰتِ وَ أَيَّدْ نَٰ هُ بِ رُوحِ ٱلْ قُدُسِ وَ لَوْ شَآءَ ٱللَّهُ مَا ٱقْتَتَلَ ٱلَّذِينَ مِنۢ بَعْدِ هِم مِّنۢ بَعْدِ مَا جَآءَتْ هُمُ ٱلْ بَيِّنَٰتُ وَ لَٰكِنِ ٱخْتَلَفُ وا۟ فَ مِنْ هُم مَّنْ ءَامَنَ وَ مِنْ هُم مَّن كَفَرَ وَ لَوْ شَآءَ ٱللَّهُ مَا ٱقْتَتَلُ وا۟ وَ لَٰكِنَّ ٱللَّهَ يَفْعَلُ مَا يُرِيدُ
Those messengers - some of them We caused to exceed others. Among them were those to whom Allah spoke, and He raised some of them in degree. And We gave Jesus, the Son of Mary, clear proofs, and We supported him with the Pure Spirit. If Allah had willed, those [generations] succeeding them would not have fought each other after the clear proofs had come to them. But they differed, and some of them believed and some of them disbelieved. And if Allah had willed, they would not have fought each other, but Allah does what He intends.
49:9
وَ إِن طَآئِفَتَانِ مِنَ ٱلْ مُؤْمِنِينَ ٱقْتَتَلُ وا۟ فَ أَصْلِحُ وا۟ بَيْنَ هُمَا فَ إِنۢ بَغَتْ إِحْدَىٰ هُمَا عَلَى ٱلْ أُخْرَىٰ فَ قَٰتِلُ وا۟ ٱلَّتِى تَبْغِى حَتَّىٰ تَفِىٓءَ إِلَىٰٓ أَمْرِ ٱللَّهِ فَ إِن فَآءَتْ فَ أَصْلِحُ وا۟ بَيْنَ هُمَا بِ ٱلْ عَدْلِ وَ أَقْسِطُ وٓا۟ إِنَّ ٱللَّهَ يُحِبُّ ٱلْ مُقْسِطِينَ
And if two factions among the believers should fight, then make settlement between the two. But if one of them oppresses the other, then fight against the one that oppresses until it returns to the ordinance of Allah. And if it returns, then make settlement between them in justice and act justly. Indeed, Allah loves those who act justly.