What are the tangible proofs of the prophethood of Muhammad (peace be upon him) and that the Quran is from Allah, proofs that do not rely on the eloquence of the Quran or on his illiteracy, as these are proofs from the Quran and Sunnah?

The greatest miracle of Islam is the Holy Qur’an, and its miraculous nature is not limited to its eloquence and clarity, but it also has other facets that are no less significant in indicating that it is the word of Allah Almighty. It is recommended to ponder the Qur’an, read its exegesis, and strive to understand it, as this leads to faith. Many specialists have focused on explaining the various facets of the Qur’an's miraculous nature in diverse sources, and the questioner is advised to read in this regard.