Have you read the Bible?
Many Muslims have not read the Bible because they think it is corrupted and not the Word of God. This is not true. Jesus taught that we should study the Old Testament Scriptures because they speak of Him,
44He [Jesus] said to them, “This is what I told you while I was still with you: Everything must be fulfilled that is written about me in the Law of Moses, the Prophets and the Psalms.” 45Then he opened their minds so they could understand the Scriptures. 46He told them, “This is what is written: The Christ will suffer and rise from the dead on the third day, 47and repentance and forgiveness of sins will be preached in his name to all nations, beginning at Jerusalem. 48You are witnesses of these things.
If you would like to learn more about the Bible, here is a helpful video about 1 Samuel, the ninth book of the Bible.
Many more excellent videos can be found at the Bible Project
Translations of these videos are available on YouTube.
If one of the reasons you do not read the Christian Scriptures is because you believe they are corrupted, then you are in great error. In fact, the Quranic Injil–the alleged book given to Jesus from heaven–is a corruption. (cf. Qur’an 5:46-47; 57:27). No such Injil exists or has ever existed.