In the new world, by considering the issues to be emerging, the background of the issues in Islamic thought is no longer discussed. Since this deficiency is also observable in city and urban studies, Muslim thinkers are concerned with explaining various issues, especially the principles governing the physical dimensions of the ideal city of Islam, from the source of revelation. Meanwhile, the speech of the infallible imams (AS) was based on the two criteria of reason and Sharia, in which we could not expect the negative consequences and damages of the current views. In the current research, we aim to obtain the view of Imam Ali (AS) regarding the principles governing the physical dimensions as one of the three dimensions of the ideal city, based on the eight principles introduced in the authors’ previous research, including Tawḥīd and Godcenteredness, justice, life, human dignity, security, freedom, order, and ownership. In this regard, the research method is a combination of text and content analysis and meta-analysis methods, and library sources, including hadith sources, commentaries, and other people’s research, have been used to collect the information. The results of the research show that the ideal city, like other components of creation, will be for man and his perfection, and this city will provide only the opportunity for man to achieve his main position, that is, Caliph of Allah. Therefore, everything in this society is a tool to serve man, develop his dignity, and finally reach the holy goal of meeting Allah.