Al Anfal, 73 Ayah
8:73
وَٱلَّذِينَ كَفَرُواْ بَعۡضُهُمۡ أَوۡلِيَآءُ بَعۡضٍۚ إِلَّا تَفۡعَلُوهُ تَكُن فِتۡنَةٞ فِي ٱلۡأَرۡضِ وَفَسَادٞ كَبِيرٞ ٧٣
Wa Al-Ladhīna Kafarū Ba`đuhum 'Awliyā'u ۚ Ba`đin 'Illā Taf`alūhu Takun Fitnatun Fī Al-'Arđi Wa Fasādun Kabīrun
And those who disbelieved are allies of one another. If you do not do so, there will be fitnah on earth and great corruption.