The present colloquial, a group of dialects that appeared alongside the Paschal in the later ages of our Arabic life, and people in the Arab countries have composed it and used it as a language for understanding, and for daily dealings between them. The necessity of the ocean, for it to keep pace with its owners, because most people do not know others, and no matter how different their vocabulary differs between members of the same country or between the countries of the Arab world, they all agree in the silence of their last words, and their inability to be a language of writing, but it is valid for understanding between members of each society Certain features are combined in it. Before searching for the reasons for the spread of colloquialism, we must define the concept that applies to the colloquial that we are discussing, and take out the concepts that came similar to it by name, and contradict it in meaning, so that the research is directed to study it exclusively, and we must define the time period that started In it to spread, and during which the Sunnah were able to speak it, and then we examine the position of those who called for it in the name of facilitation.