We began discussing in the third part of the book "Al-Mutayyam" the issue of revelation, where we addressed some important points related to this topic, such as: the nature of revelation, whether the personality of the Prophet Muhammad ﷺ was imaginary or real, and what the Torah and the Gospel said about him ﷺ. Then we answered a question that imposes itself: Why do they deny him ﷺ while the Quran records his existence, and history testifies to him ﷺ? And before you is the fourth part of this book, where we continue discussing some points related to the issue of revelation. We start by discussing the centrality of humanity upon which the Western theory is based, and the extent of its clash with the call of the Prophet Muhammad ﷺ regarding the reality of the centrality of the love of Allah and His worship in the life of humanity. Then we talk about the independence of Islamic legislation, and we answer some questions that are frequently asked when discussing revelation and its nature, such as: Was the Prophet ﷺ influenced by the previous Hanif? Is it possible that Bahira the monk was a fictional character? What is the Quran's stance on other beliefs? What is the reality of the disconnected letters in the Quran, and did the Prophet ﷺ take them from previous scriptures? And we answer this important question: Whose speech is the Quran? Then we continue our blessed journey, and we continue talking about the issue of revelation, starting our discussion about the forms and types of revelation, then we answer some questions related to this matter, such as: Was revelation a type of epilepsy, or was its source Satan? Was revelation magic, or were they just dreams that the Prophet ﷺ saw? Then we conclude the discussion on the issue of revelation by talking about Ummayah, the mother of the Prophet ﷺ, and we answer important questions related to this matter: Does the illiteracy of a person imply ignorance? Does the fact that the Prophet ﷺ was illiterate mean that the scribes of revelation deceived him ﷺ? Was the Messenger of Allah ﷺ just a righteous man, or was he a social reformer? Then comes the conclusion with which we end the discussion on everything related to the issue of revelation.