The Rightly Guided Caliphs: Their Lives and Times | Introduction

The first four caliphs of the Islamic empire - Abu Bakr, Umar, Uthman, and Ali are referred to as Rashidun [rightly guided] Caliphs (رضي الله عنهم).
Dr. Ovamir Anjum tried to cover the main political events of that Golden age by explaining their rulings and other details about Khulafa-e-Rashidun.

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What is the name of the nasheed at the beginning please.