Presentation of the thirty endowments of the art of da'wah mentioned in the book of Dr. Ayed Al-Qarni.

The author is the book of 30 stops on the art of advocacy and the author of 93 other books.
Ayed bin Abdullah Al-Qarni is a Saudi writer, poet, and preacher. He has many books, speeches, and audio and video lectures, including lessons, lectures, poetry evenings, and literary seminars. The book "Don't Be Sad" is considered the most prominent product of Al-Qarni Al-Marafi, as it has sold more than ten million copies.


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