One of the most remarkable and famous books on the character and virtues of the Prophet Muhammad (peace and blessings be upon him). This book is considered a great reference for understanding the noble Prophet, to the point that scholars have said, "Were it not for Al-Shifa, the Chosen One would not have been known." In Mauritania, it is customary to read it during the month of Rabi' al-Awwal in religious gatherings.

Judge Iyad divides his book into four main sections:

1. The first section: deals with glorifying the status of the Prophet, may God bless him and grant him peace, in word and deed.
2. The second section: It deals with the rights of the Prophet that are incumbent upon the servants.
3. The third section: discusses what is impossible, what is permissible, what is forbidden, and what is valid in his case.
4. Section Four: Explains how to punish those who disparage or insult the Prophet.

The book is distinguished by its sound scientific style, and it represents a fundamental reference in the Prophet’s biography and character, making it one of the most important books that promotes love and veneration for the Prophet in the hearts of Muslims.