Allies is mentioned in the Quran in these verses:

[4:76] Those who believe are fighting for the cause of God, while those who disbelieve are fighting for the cause of tyranny. Therefore, you shall fight the devil’s allies; the devil’s power is nil.

[4:89] They wish that you disbelieve as they have disbelieved, then you become equal. Do not consider them friends, unless they mobilize along with you in the cause of God. If they turn against you, you shall fight them, and you may kill them when you encounter them in war. You shall not accept them as friends, or allies.

[5:51] O you who believe, do not take certain Jews and Christians as allies; these are allies of one another. Those among you who ally themselves with these belong with them. God does not guide the transgressors.

[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.

[5:56] Those who ally themselves with God and His messenger, and those who believed, belong in the party of God; absolutely, they are the victors.

[5:57] 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.

[6:121] Do not eat from that upon which the name of God has not been mentioned, for it is an abomination. The devils inspire their allies to argue with you; if you obey them, you will be idol worshipers.

[8:72] Surely, those who believed, and emigrated, and strove with their money and their lives in the cause of God, as well as those who hosted them and gave them refuge, and supported them, they are allies of one another. As for those who believe, but do not emigrate with you, you do not owe them any support, until they do emigrate. However, if they need your help, as brethren in faith, you shall help them, except against people with whom you have signed a peace treaty. God is Seer of everything you do.

[8:73] Those who disbelieved are allies of one another. Unless you keep these commandments, there will be chaos on earth, and terrible corruption.

[9:71] The believing men and women are allies of one another. They advocate righteousness and forbid evil, they observe the Contact Prayers (Salat) and give the obligatory charity (Zakat), and they obey God and His messenger. These will be showered by God’s mercy. God is Almighty, Most Wise.

[10:62] Absolutely, God’s allies have nothing to fear, nor will they grieve.

[11:113] Do not lean towards those who have transgressed, lest you incur Hell, and find no allies to help you against God, then end up losers.

[22:3] Among the people, there are those who argue about God without knowledge, and follow every rebellious devil.

[22:4] It is decreed that anyone who allies himself with him, he will mislead him and guide him to the agony of Hell.

[33:26] He also brought down their allies among the people of the scripture from their secure positions, and threw terror into their hearts. Some of them you killed, and some you took captive.

[41:31] “We are your allies in this life, and in the Hereafter. You will have in it anything you wish for; you will have anything you want.

[42:46] There will be no allies to help them against God. Whomever God sends astray can never be guided.

To learn more, click here.

Learn about the Submitters also.