lists original manuscripts, such as those held at Cambridge University Library. :

(the vizier of Prophet Sulayman/Solomon), the book is a cornerstone of Solomonic grimoires, detailing the seven "races" (ajnas) of jinn. Direct Download Sources

The text is structured around the seven categories (ajnas) of spiritual beings—the races of jinn inhabiting the unseen world.

Often cited as one of the oldest "books of wisdom" (ilm al-hikmah), the text focuses on the unseen world and the spiritual beings inhabiting it. Structure: Traditionally composed of 188 chapters , it details the "races" (ajnas) of jinn.

The book is traditionally said to be over 5,000 years old and serves as a guide to the metaphysical structure of the universe. Key topics include:

The download bar appeared. It moved slowly, inching across the screen. Verifying download... The file was massive—over 800 megabytes. High-resolution scans.

Search academic databases (e.g., Google Scholar, Dar al-Makhtutat) with the exact Arabic title: كتاب الأجناس. If no clear match appears, the title may be a later editorial invention.

You can download the Kitab Al-Ajnas (The Book of Genera), attributed to Asif bin Barkhiya