In Izalat al-Khafa 'an Khilafat al-Khulafa, Shah Wali Allah attempts to demonstrate the fundamental importance of this early model of Khalifa, as one of the cardinal principles of religion.
While Shah Waliullah's treatment of this subject in the Buzur and the Hujjah is mainly metaphysical and juridical, his discussion in Izalat al-Khafa is focused on the actualization of the sociopolitical ideals of Islam in history.
From these premises, Shah Wali Allah arrives at the -conclusion that: "Whoever attempts to break away from this root (i.e. the early khilafah), he indeed seeks to obliterate the entire corpus of the Religious Sciences."
Part one further deals with the arguments for the validity of the early caliphate model and reconciles between the two apparently conflicting views with regard to the discretionary or mandatory character of khilafat.
In passing, Shah Wali Allah also surveys the rise and fall of the Muslim society during the different phases of caliphal history which, according to him, had always been commensurate with the degree of conformity or conflict between the pattern of khilafah and the criteria provided by the early normative model.
This part deals with those aspects of the lives of the four early caliphs which point to the singularly excellent virtues (fada'il) that make their political conduct an exemplary pattern in statecraft.
Again in the second part, Shah Wali Allah presents an in-depth study of the verses of the Qur'an and Muhammad's traditions that allude to the high status of the four caliphs in general and the first two among them in particular, either explicitly or implicitly.
He also refutes many political and theological doctrines of the Shi'ah by adducing traditional and rational arguments and controverts their assertions that belittle the status of these companions and successors of Muhammad.
In addition to these aspects and dimensions of these personalities, Shah Wali Allah also throws light on the intellectual and academic contribution of the companions of Muhammad, particularly in the fields of the Qur'an, Hadith, law, jurisprudence, international relations, Arabic language and spiritual guidance.
They include Tafsir, Hadith, Fiqh, Usul al-fiqh, 'Aqa'id (beliefs), Kalam (scholastics), philosophy, Tasawwuf (spiritual sciences), history, biography, Arabic poetry, and grammar.