الكافي

They are among the healthiest and most respected books in the hadith, and sufficient for Sheikh Muhammad bin Yaqoub Al-Kulayni (d. 329 AH), who is famous among the Twelver Shi'a among the title of the trust of Islam Kulayni.

Al Kafi Book consists of three sections: They are: Origins of Al Kafi, and Al Kafi branches, and Rawdat Al Kafi, and these sections are divided into eight parts of the book. Each section is divided into sub-books. The following is an explanation of the parts of the book.
Osool Al-Kafi: It is located in the first two parts of the book, and it contains sub-books:
part One:
Book of mind and ignorance.
The virtue of science book.
The Book of Tawheed.
The argument book.
The second part:
Book of faith and unbelief.
The Book of Supplication.
The book of the merit of the Qur’an.
Book of Ten.
Al-Kafi branches: Al-Kafi branches are the parts from the third to the seventh, and there are narratives that talk about the branches of Shiite jurisprudence, starting from purification through Zakat, prayer, pilgrimage and other sections of jurisprudence, and ending with the will, vows and faith.
Rawdat Al-Kafi: Rawdat Al-Kafi is located in the eighth and final part of it, and it contains several separate and different topics.