Abstract

Abul-Hatheel Al-Allaaf is regarded as one of the founders of E tizali thought and its five bases. This research deals with an issue that busied the Greek and Arab philosophers; then it was treated by those who were called Scientists of Speech particularly The Motazila who found that The Holy Quran contained additional verses and many hints about the creation of the World. In this research I have introduced definitions of some philosophical terms such as Creation, Substance, Essence and others from the point of view of Al-Allaaf himself. I have explained the original source of the theory of the Single Essence and discussed the different concepts of the scientists who believe that the source of the theory was Greek, Indian or Bhudist. I explained their ideas and rejected them showing my own opinion to explain the difference between the theory of Epicure and that of Al-Allaaf. Then I introduced a detailed criticism of the theory, particularly that part related to Al-Nazzam and Ibn Hazm. Moreover, I have dealt with the concepts of the scientists who praised the theory and noticed that it contained great effort for putting an Islamic theory to explain the Creation of the World. - I have explained the proofs that Al-Allaaf gave to explain the Creation of the World and the most important of these proofs is that of the Single Essence, which he adopted. It also talked about the differentiation between the Immortal, ALLAH and the Created, the World.