Why the Islamic Injil as Described Doesn't Exist:

1. The Quranic Reference:

   • The Quran mentions the Injil as a divine revelation given to Jesus, but it does not provide specifics about its form or content. It speaks of the Injil more as a message rather than a physical book.

   • Verses like Surah 3:48 and Surah 5:46 refer to the Injil as a revelation from Allah, but do not describe it as a single book or text that could have been preserved in the way the Quran itself was.

2. The Absence of a Historical Injil:

   • There is no historical evidence of a single book given to Jesus called the Injil. In fact, there is no record of Jesus authoring a book or being handed a book directly. His teachings were transmitted orally by his followers.

   • The Gospels—Matthew, Mark, Luke, and John—are the written accounts of Jesus' life and teachings. They were written by his followers decades after his death.

3. The Gospels as the Preserved Injil:

   • The Gospels (written in Greek) are considered by Christians as the preserved record of the Injil—the message of Jesus. These books document the good news (the gospel) about Jesus Christ, his life, death, and resurrection.

   • Arabian Christians by the 7th century already referred to the Injil as the Gospels. The term "Injil" was understood in their context as the written accounts of Jesus' life and teachings, which were widely accepted in the Christian community.

4. Muslim Interpretation vs. Historical Reality:

   • While Muslim tradition acknowledges the Injil as a divine book revealed to Jesus, this understanding doesn't align with historical facts. There’s no evidence of such a single, physical book being revealed to Jesus, and no record of Jesus himself writing anything down.

   • Instead, the Gospels, written by his disciples and followers, became the document that preserved Jesus' teachings. Thus, the Injil referred to in the Quran would logically align with the Gospels in terms of content and message.

Conclusion:

The idea of the Islamic Injil as a single book given directly to Jesus does not exist in historical records, and there is no evidence that such a book ever existed in the way it is described. The Gospels (Matthew, Mark, Luke, and John) are the preserved accounts of Jesus' teachings and are the written record of the Injil—the message of salvation that Jesus preached.