Praise be to Allah, the Lord of the Worlds. May the highest rank be bestowed upon Muhammad, the Master of the Messengers, sallallahu ^alayhi wa sallam, and his kind and pure Al and Companions; and may Allah protect his nation from that which he fears for it. Thereafter:
A group of people called Hizb at-Tahrir{1} emerged to spread falsehood and incite meaningless controversies. The founder of this party was a man named Taqiyyud-Din an-Nabahaniyy. He unrightfully claimed for himself the status of ijtihad and ignorantly dealt with the issues of the Religion. Consequently, he perverted and belied the Book of Allah, the Sunnah of His Messenger, sallallahu ^alayhi wa sallam, and contravened the scholarly consensus (ijma^) in cases pertaining to both the fundamentals and the ramifications of the Religion.
We embarked upon writing this concise treatise to fulfill the obligation that Allah ordained upon us which is to command the lawful (ma^ruf) and forbid the unlawful (munkar), and to advise and warn the Muslims against this party and their sayings. We substantiated this treatise by proofs from the Book of Allah, the Sunnah of the Prophet, the ijma^ of the nation, and the statements of the scholars to expose the wrong sayings and negate the false opinions of Hizb at-Tahrir.
Warning against the deviant and straying people is an obligatory matter. In fact, if warning against the person who cheats the Muslims in articles of trade is obligatory, then it is more so to warn against the person who intrigues and perverts the Religion and belies Allah and the Messenger. Allah, ta^ala, said in Surat Al-^Imran, Ayah 104:
which means: [Let there be among you a nation that invite to the good, command the lawful, and forbid the unlawful.]
Abu ^Aliyy ad-Daqqaq said: "The one who withholds the truth is a mute devil."
