The key to happiness and the lamp of sovereignty in the topics of sciences - 5 volumes

The Fursan Foundation entrusted the investigators of this edition to review and scientifically verify it thoroughly, so they examined most of the manuscript sources of the book, studied, classified, and compared their manuscript sources. They also made a commendable effort to edit, verify, and properly document the text of the book, adorn it with a set of beneficial comments, and clarify it with detailed technical appendices that facilitate its benefit. They preceded their verification with a comprehensive study that addressed the personal and scientific biography of Tash Köprüzade, provided a thorough introduction to his book "Miftah al-Saada," explained its scientific value and classification methodology, mentioned its influence by predecessors and its impact on successors, highlighted some of its benefits and examples of its misconceptions, and extensively studied its manuscript copies, demonstrating their importance and relation to their author. They also outlined a clear plan of their steps and methodology, and finally presented samples of the copies they relied on in the verification.