where is the Injil?

We have the Torah, We have the Psalms, We have the Quran, where is a copy of the Injil? Is it the same as the Bible Gospels (Matthew, Mark, Luke, and John) and if not where is the "Injil". Who can answer this question? I have done google search and found where some believe the injil is the Gospel of Jesus... some claim to be lost ... but Muhammend say believe the Torah, Pasls and Gospel.. so is the 4 gospel the injil or not.? simple/