Surah Al-Anfal Verse 73 - English Translation by Ali Unal
Surah Al-Anfalوَٱلَّذِينَ كَفَرُواْ بَعۡضُهُمۡ أَوۡلِيَآءُ بَعۡضٍۚ إِلَّا تَفۡعَلُوهُ تَكُن فِتۡنَةٞ فِي ٱلۡأَرۡضِ وَفَسَادٞ كَبِيرٞ
Those who disbelieve – they are friends and protectors of one another (especially against you). Unless you do it also (i.e. maintain solidarity among the believers) there will be unrest on the earth and great corruption