Quran 5:56 — The Feast (Al-Ma'edah)

Those who ally themselves with GOD and His messenger, and those who believed, belong in the party of GOD; absolutely, they are the victors.

[5:55] Your real allies are GOD and His messenger, and the believers who observe the Contact Prayers (Salat), and give the obligatory charity (Zakat), and they bow down.

[5:57] O you who believe, do not befriend those among the recipients of previous scripture who mock and ridicule your religion, nor shall you befriend the disbelievers. You shall reverence GOD, if you are really believers.