Hazrat Mirza Ghulam Ahmad (as) wrote this book to express authentic views on the centuries old differences between Sunni and Shia which often had resulted in running battles between Sunni and Shia sects on the issue of Khilafat. This book is in ornate, beautiful and in high flown Arabic, this very style was in itself a challenge to contemporary Sunni and Shia clergy who questioned his command on Arabic language. Hazrat Jalal-ud-Din Shams (ra) in his introduction to the book said:

“This book became necessary on account of tension existing between these two sects. Hazrat Mirza Ghulam Ahmad (as) using cogent arguments settled the issue of Khilafat in a very fine style.”

With this book, Hazrat Mirza Ghulam Ahmad (as) attached a leaflet. He wrote:

“I can say about these books that God Himself helped me to write them, I cannot call them divine revelations, but I can say with a great deal of emphasis that it was special divine assistance that made my hand write these books.” (Sirrul-Khilafah, pp. 82, Ruhani Khaza’in, vol. 8, pp. 415-416).

(Taken from An Introduction to the hidden Treasures of Islam)