"Khulafahar Rashidun" refers to the first four Caliphs of Islam who ruled after the death of the Prophet Muhammad. The term "Khulafah" means "successors" or "Caliphs" and "Rashidun" means "rightly guided." The Khulafahar Rashidun are Abu Bakr, Umar, Uthman, and Ali. They are considered to be the "rightly guided" Caliphs because they were chosen based on their piety, wisdom, and dedication to the teachings of Islam. They established a just and prosperous Muslim society during their rule, which lasted from 632 to 661 CE. The term "Khulafahar Rashidun" is used to honor their legacy and to emphasize the importance of their leadership in the history of Islam.