Prinsipi na huɗu ya bayyana cewa Khaleefah ita ce kaɗai hukuma mai ikon wajibi wajen ɗaukar dokoki da tsara doka. Wannan an tabbatar da shi ta hanyar ijma'in Sahabbai (Ijmaa'). Bisa wannan ijma'i an samo waɗannan ƙa'idodin Shari'a: "Ra'ayin Imam ne yake kawo ƙarshen sabani"; "Ra'ayin Imam wajibi ne a bi shi"; "Sultan (Imam) yana da hakkin ɗaukar sababbin dokoki ga duk sababbin al'amuran da suka taso".

The fourth principle, states that the Khaleefah is the sole body with mandatory powers to adopt laws and legislation. This has been proved by the general consensus of the Sahabah (Ijmaa’). Following this consensus these Shari’ah principles have been derived: “The opinion of the Imam settles the difference”; “The opinion of the Imam is binding”; “The Sultan (Imam) reserves the right to adopt new laws for as many new matters that arise”.

Wannan za a yi bayaninsa daga baya tare da hujjojinsa, a babin da ke kan ikon wajibi na Khalifa.

This will be explained later on together with its proofs, in the chapter on the mandatory powers of the Khaleefah.