In the name of of Allah the Merciful

Praise be to Allah, Lord of the Worlds, and peace and blessings be upon the Ashraf of his creation, and the best messengers Mohammed bin Abdullah, and his family and companions, and after:
One of the most important topics that the Muslim must know clearly, the subject of the creature corresponding to mankind, namely the jinn, that strange creature, which was filled with the Koran verses, and the codifiers of the honorable year, and spoke by the imams of Islam in their many works.
For the sake of this vast area left by the subject of the jinn in the book and the Sunnah, and the many religions of Islam, I saw that it is important to specify a short form known to them, and remember their qualities, and show their good and evil, and the means to prevent their evil, especially at this time when ignorance , And there is a lot of contact with witchcraft and cheating who take from the infidelity of the jinn to go and get lost.
As well as in the talk about them guidance and warning of what many people have suffered in our time of the infidelity of the jinn on them epilepsy, to teach those affected by this matter is a test and test, and that the injured and the patient was part of Paradise; as reported in the story of women who were breast .
I have tried my best to extract this in this small author, and divided the subject into four main things, and made under the branches of the findings of the science transmitted in the books of the people of Islam, These are:
1- Introducing them with explanation and statement.
2 - mentioning their qualities.
3 - Statement of harm to the jinn and how to do so.
4 - ways to prevent their evil.
I have done all that I have of effort and time, and God ask him to make him in the balance of good deeds on the Day of Judgment, and that the benefit of all Muslims, and Tawfiq only God, and I trust, and I seek, and blessings and peace be upon His Prophet the honorable Secretary, and all companions And followers, and those who follow them with charity to the Day of Judgment.