Quran 8:73 from Surah Al-Anfaal on Divine Marvels.
وَٱلَّذِينَ كَفَرُواْ بَعۡضُهُمۡ أَوۡلِيَآءُ بَعۡضٍۚ إِلَّا تَفۡعَلُوهُ تَكُن فِتۡنَةٞ فِي ٱلۡأَرۡضِ وَفَسَادٞ كَبِيرٞ
English translation: And those who disbelieve some of them (are) allies (to) another If not you do it (there) will be oppression in the earth and corruption great
Transliteration: wa-alladhina kafaru ba'duhum awliyau ba'din illa taf 'aluhu takun fit'natun fi al-ardi wafasadun kabirun