This research, entitled: (The Dangers of Dispersal and the Means of Limiting It to the Ummah in Light of the Sunnah of the Prophet - A Doctrinal Study-) consists of an introduction, two sections, and a conclusion. In the introduction, the researcher pointed out that dispersal has serious consequences for Muslims in belief, entity, society, and individuals, and due to the great concern for preserving the nation. Islam and its faith from this coming danger that uproots its strength, distorts the beauty of its society, and ugliness the manifestations of its unity, for fear of all these results and complications that occur due to dispersal. As for what is assigned to the first topic, the researcher deals with the fears of dispersal for the nation, including the fears of passion and ignorance over the dispersion of the nation, as well as linking the extinction of the nation. The nation is divided in various ways and the fear for the nation from being dispersed due to various factors, and also likening the Qadariyya sect to the Magians because of their danger to the unity of the nation. As for the second topic, which is the means of reducing the division in the nation, the researcher addresses several topics, including: choosing isolation for fear of dispersal and the command to take the prince out of fear. From the occurrence of division, as well as mentioning adherence to the group and staying away from all sects and the sending of messengers to unite nations after disagreement. The study concluded with a number of points that are represented in the following: Inclinations are the influential factor that a person follows that forces him to doctrinal division, as well as interpreting the Qur’an and Sunnah out of ignorance without referring to it. Scholars paves the way for each group to claim that it is right, and that the Qadariyya sect has great risks of dividing the Islamic nation, weakening its belief, and dispersing its unity and entity. Likewise, the Prophet - may God bless him and grant him peace - obliged Muslims to adhere to various means for fear of entering into disunity, including isolation. At home, the Prophet, peace and blessings of God be upon him, made sure that Muslims were together, even on trips and travel, so that there would be no doctrinal division.