“O You believers! Do not take for guardians the enemies of Mine and foes of yours; you shows them friendship while they are the ones who disbelieved the Truth to you revealed, and drove out the Apostle and yourselves, because you did believe in God, your Lord! If you come out to struggle in My Cause, seeking to please Me, do you then extend secret affection to them as friends?! And I do know full well what you conceal and all that you reveal, and whosoever of you may do this will surely stray from the right way.”
(Sura Al-Mumtahina, Aya 1)