Religious and political leader in Islam?

Answer 1

In the early days of Islam, the religious leaders were also the political leaders. The first four Rightful Caliphs were the religious as well as political leaders. Then some of the religious scholars like Imam Abu Hanifa ra, Harat Imam Malik ra, Hazrat Imam Ahmad bin Hambal ra, etc devoted their life for the compilation of Islamic Jurisprudence (Fiqh), some other for compilation of Hadith and certain others for spiritual training.

Answer 2

Caliph is the political and religious leader of Islam and has all the authorities but is limited to use them without consent of public.

Answer 3

Prophet Muhammad (peace be upon him)