And those who disbelieved are allies of one another. If you do not do so, there will be fitnah on earth and great corruption.
Meaning:-
Fitnah: ( Al-Fitnah is worse than killing.) Spreading Mischief, trying to force the Muslims to revert from their religion and re-embrace Kufr after they had believed, is worse with Allah than killing.
Allies: a person who associates, friendship or cooperates with another; supporter.