What is the “Injil” in the Koran? According to many Muslim translations, the “Injil” is simply the Gospel, the Bible’s New Testament.
Koran’s “Injil” is Gospel

He has sent down upon you, [O Muḥammad], the Book in truth, confirming what was before it. And He revealed the Torah and the Gospel
Koran 3:3
And He will teach him writing and wisdom and the Torah and the Gospel
Koran 3:48
O People of the Scripture, why do you argue about Abraham while the Torah and the Gospel were not revealed until after him? Then will you not reason?
Koran 3:65
5:46 And We sent, following in their footsteps, Jesus, the son of Mary, confirming that which came before him in the Torah; and We gave him the Gospel, in which was guidance and light and confirming that which preceded it of the Torah as guidance and instruction for the righteous.
47 And let the People of the Gospel judge by what Allāh has revealed therein. And whoever does not judge by what Allāh has revealed – then it is those who are the defiantly disobedient.
Koran 5:46-47
And if only they had upheld [the law of] the Torah, the Gospel, and what has been revealed to them from their Lord [i.e., the Qur’ān], they would have consumed [provision] from above them and from beneath their feet.
Among them are a moderate [i.e., acceptable] community, but many of them – evil is that which they do.
Koran 5:66
Say, “O People of the Scripture, you are [standing] on nothing until you uphold [the law of] the Torah, the Gospel, and what has been revealed to you from your Lord [i.e., the Qur’ān].”
And that which has been revealed to you from your Lord will surely increase many of them in transgression and disbelief.
So do not grieve over the disbelieving people.
Koran 5:68
[The Day] when Allāh will say, “O Jesus, Son of Mary, remember My favor upon you and upon your mother when I supported you with the Pure Spirit [i.e., the angel Gabriel] and you spoke to the people in the cradle and in maturity; and [remember] when I taught you writing and wisdom and the Torah and the Gospel; and when you designed from clay [what was] like the form of a bird with My permission, then you breathed into it, and it became a bird with My permission; and you healed the blind [from birth] and the leper with My permission; and when you brought forth the dead with My permission; and when I restrained the Children of Israel from [killing] you when you came to them with clear proofs and those who disbelieved among them said, “This is not but obvious magic.”
Koran 5:110
Those who follow the Messenger, the unlettered prophet, whom they find written [i.e., described] in what they have of the Torah and the Gospel, who enjoins upon them what is right and prohibits them from what is wrong and makes lawful for them what is good and forbids them from what is evil and relieves them of their burden and the shackles which were upon them. So they who have believed in him, honored him, supported him and followed the light which was sent down with him – it is those who will be the successful.
Koran 7:157
Indeed, Allāh has purchased from the believers their lives and their properties [in exchange] for that they will have Paradise. They fight in the cause of Allāh, so they kill and are killed. [It is] a true promise [binding] upon Him in the Torah and the Gospel and the Qur’ān. And who is truer to his covenant than Allāh? So rejoice in your transaction which you have contracted. And it is that which is the great attainment.
Koran 9:111
Muḥammad is the Messenger of Allāh; and those with him are forceful against the disbelievers, merciful among themselves.
You see them bowing and prostrating [in prayer], seeking bounty from Allāh and [His] pleasure.
Their sign is in their faces from the effect of prostration [i.e., prayer].
That is their description in the Torah.
And their description in the Gospel is as a plant which produces its offshoots and strengthens them so they grow firm and stand upon their stalks, delighting the sowers – so that He [i.e., Allāh] may enrage by them the disbelievers.
Allāh has promised those who believe and do righteous deeds among them forgiveness and a great reward.
Koran 48:29
Then We sent following their footsteps [i.e., traditions] Our messengers and followed [them] with Jesus, the son of Mary, and gave him the Gospel.
And We placed in the hearts of those who followed him compassion and mercy and monasticism, which they innovated; We did not prescribe it for them except [that they did so] seeking the approval of Allāh.
But they did not observe it with due observance.
So We gave the ones who believed among them their reward, but many of them are defiantly disobedient.
Koran 57:27
Hadith’s Injil is Testament AKA Bible

“Allah has not revealed in the Torah or in the Injil like the Mother of the Qur’aan, which is the seven Mathani, and it is divided between me and my servant, and my servant has not asked.”
Jami` at-Tirmidhi 3125
In the hadith the word “injil” is translated as “testament”, like:
Allah’s Messenger said, “It is not permissible for any Muslim who has something to will to stay for two nights without having his last will and testament written and kept ready with him.”
Sahih al-Bukhari 2738
But Infidel, the Bible, Gospel and Testament have been altered, corrupted, and not the same (etc)! Here’s where Muhammad’s men recited the Bible:
‘Amir b. Shahr said:
Sunan Abi Dawud 4736
I was with the Negus when his son recited a verse of the Gospel. So I laughed. Thereupon he said: Do you laugh at the word of Allah, the Exalted?
As you can see, Muhammad’s men had a copy of the Gospel, recited it, and respected it as Allah’s word.
I heard Allah’s Messenger while he was standing on the pulpit, saying, “The remaining period of your stay (on the earth) in comparison to the nations before you, is like the period between the Asr prayer and sunset. The people of the Torah were given the Torah and they acted upon it till midday, and then they were worn out and were given for their labor, one Qirat each. Then the people of the Gospel were given the Gospel and they acted upon it till the time of theAsr prayer, and then they were worn out and were given (for their labor), one Qirat each. Then you people were given the Qur’an and you acted upon it till sunset and so you were given two Qirats each (double the reward of the previous nations).” Then the people of the Torah said, ‘O our Lord! These people have done a little labor (much less than we) but have taken a greater reward.’ Allah said, ‘Have I withheld anything from your reward?’ They said, ‘No.’ Then Allah said, ‘That is My Favor which I bestow on whom I wish.’ “
Sahih al-Bukhari 7467
As you can see, there is nothing from Allah and Muhammad about any coruption of the Torah or Gospel.
The Muslim claim that the Gospel, Testament, and Bible are corrupt is an innovation in Islam, shirk. Muslims do this, so they can cherry-pick from the Old and New Testaments, and when both contradict the Koran, they complain that these parts are corrupt.
Muhammad was a false prophet, for a false god, Allah, for a false religion, Islam, without even a false book, the Koran.
