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
Let not believers take disbelievers as allies [i.e., supporters or protectors] rather than believers. And whoever [of you] does that has nothing [i.e., no association] with Allah, except when taking precaution against them in prudence. And Allah warns you of Himself, and to Allah is the [final] destination.
1 Mufti Taqi Usmani
The believers must not take the disbelievers as friends instead of the believers.And whoever does that has no relation with Allah whatsoever, unless you (do so) as a protective measure (in order to) save yourself from them. Allah warns you of Himself, for unto Allah is the return.