The great caliphs

The first four caliphs of Islam
This book is based on the lives of the first 4 caliphs of Islam who are known as the rightly guided caliphs. They are:

Abu Bakr
Umar ibn al-Khattab
Uthman ibn Affan
Ali ibn Abi Talib

These were among the closest Sahabah of Prophet Muhammad saw. Their lives are a basis of motivation for believers of all time. These caliphs, although the successive heads of a great empire, lived extremely simple lives, like ordinary men.