Sayyid Qutb is one of the controversial commentators, it is apparent from the interpretation of some verses of the Qur'an, especially with respect to the faith. His ideas contained in the book of commentary that is fi Zhilâl the Qur'an that get a lot of criticism from other Muslim leaders. one of the interesting things about the concept of thinking is dhalalah or error. As an ideology of Al-Muslim Brotherhood in Egypt he had radical ideas, especially relating to the political and legal system. He believes there are only two things in this world, namely Muslims or infidels, God's law or the law syaithan. The thinking on this is regarded as neo thoughts Khawarij in this century. Especially when he mentioned that today Muslims are nothing more than ignorance of the modern age. His ideas are very interesting to be materials research, especially with regard to the interpretation of the verses of the Qur'an.
This study will focus on the interpretation of Sayyid Qutb of the verses about dhalalah or error. To be more comprehensive then discussed also about the meaning dhalalah in the Qur'an, Sayyid Qutb biographies and characteristics Zilal Fi Tafsir Al-Quran as compared to other books of tafsir.
Research methods used in this study is a qualitative method approach maudhu'i interpretation method that is the method that seek verses of the Koran in accordance with the theme through a dictionary Mu'jam Mufahras Alfadz Koran, then looking at the book of commentary which is the primary source and the other as a supporting book of commentary. Data taken from the verses relating to the term dhalalah interpreted by Sayyid Qutb in Zilal Fi Tafseer of the Qur'an. It is also used other books that reinforce the pedanapt. Analysis of data using content analysis, especially in the passages concerned, further disaggregated considered the most powerful opinion represents the thinking of Sayyid Qutb.
The research in this thesis shows that the meaning dhalalah the Qur'an is divided into two in the language (etymology) and terminology (the term). In language, the term meaningful dhalalah lost, wasted and lost. While the term is the deviation from the path of Allah Ta'ala in the form of not heed the commands of Allah and His Messenger. Sayyid Qutb understands that the error referred to in the Qur'an is no human error in the form of idolatry, infidelity, hypocrisy, wickedness and opposition to the laws of Allah.
Key Word: Ad-Dhalalah, apostasy, Sayyid Qutb, Fi Zilal Tafsir Al-Quran