Laa yattakhizil mu'minoonal kaafireena awliyaaa'a min doonil mu'mineena wa mai yaf'al zaalika falaisa minal laahi fee shai'in illaaa an tattaqoo minhum tuqaah; wa yuhazzirukumul laahu nafsah; wa ilal laahil maseer
The believers may not take the unbelievers for their allies in preference to those who believe. Whoever does this has nothing to do with Allah unless he does so in order to protect himself from their wrong-doing. Allah warns you to beware of Him for it is to Allah that you will return.