Injil refers to the Gospel of Jesus (ʿĪsā) in Islamic tradition. It is identified as one of the four holy books revealed by Allah, alongside the Zabur, the Tawrat, and the Quran.
In the Quran, hadith, and early Muslim documents, the term Injil is used to describe both a physical book and the specific revelations made by God to Jesus. According to Quranic scripture, these revelations were provided in a physical book format.