What is the evidence against the claim by some Christians that Muhammad plagiarized the scientific information in the Qur’an from lost Gospels that Constantine ordered to be burned, and that he was not illiterate, and wanted to be recognized as a prophet?

The assertion that the Quran was taken from ancient Gospels is a false claim for the following reasons:

Firstly: The claimant must prove their claim, and there is no evidence for this assertion. Secondly: The Prophet (peace be upon him) was illiterate; he could neither read nor write. He did not receive his education from any human being. The Quran testified to his illiteracy, as Allah Almighty says: ﴿And you did not recite before it any book, nor did you inscribe one with your right hand. Otherwise, the falsifiers would have had cause to doubt.﴾ [Al-Ankabut/48]. Thirdly: Had the Prophet (peace be upon him) taken from these Gospels, the Christians of the Arabian Peninsula who lived alongside him would have exposed him. This did not happen; rather, many of them embraced Islam. Fourthly: None of the Christian kings, such as "An-Najashi," "Heraclius," or "Al-Muqawqis," mentioned that the Prophet (peace be upon him) took his message from the Gospels. Fifthly: The ancient writings of Christian scholars who refuted Islam did not provide any scientific proof for this claim.