Review of Khalid-bin-Walid's "Series" and Khalid's Subsequent Actions during the Caliphate Period

In sending and appointing the commanders of the series, the Prophet of Islam also considered the tribal positions and support. Sometimes he is from the Ansar or the emigrants or other tribes. Based on this, the purpose of this article is to investigate and identify the causes or factors that change the behavior of some of these commanders who are known as companions of the Prophet. The research method in this article is descriptive-analytical, and the question raised in this article is related to one of the companions of the Prophet named Khalid bin Waleed, whether his actions were actually based on Islamic teachings or based on the behaviors of the times of ignorance? In response, we come to the hypothesis that what he did was actually based on the behaviors of the Jahili times and not based on Islamic teachings, which can be seen in his later battles during the Caliphate era and even in the conquests. The findings indicate that being an agent of the orders of Islam is not related to a specific time and is not related to specific persons and all Muslims and in all circumstances, especially the properties and commanders and residents in any part of the world and every group and religion are obliged to implement it in accordance with They are Islamic orders, and if any commander or special forces, assistants, etc. act according to their taste and not in accordance with Islamic orders, it cannot be called Islamic.