The origins of Tahrif are debated. In the 8th century,
Muqatil ibn Sulayman claimed in his
tafsir on
al-Baqara 2:79 of the
Quran that Jews had distorted the
Tawrat and removed mention of
Muhammad in the
Quran in his Tafsir, 2:79. Some academics doubt this as a true mention of tahrif. The 9th century
Zaydi scholar
al-Qasim al-Rassi claimed that Jews and Christians had misinterpreted the interpretations of the
Tawrat,
Zabur, and the
Injil. This concept is referred to as
tahrif al-mana. However, al-Qasim al-Rassi did not believe the Bible to be only misinterpreted, but instead to have an inauthentic transmission. Some
companions of the Prophet, such as
Uthman (Ibn Qasir rejects the authenticity of the transmission from him) and ibn Abbas, made some statements that imply he believed the scriptures of "the people of the book" were distorted. (according to
Tafsir Ibn Kathir 2:79) In
Sahih al-Bukhari, he is quoted saying: The first the corruption of the Biblical text was elaborated more extensively by
ibn Hazm in the 11th century, who popularized the concept of
tahrif al-nass, 'corruption of the text'. Ibn Hazm rejected claims of
Mosaic authorship and posited that
Ezra was the author of the Torah. He systematically organised the arguments against the authenticity of the Biblical text in the
Hebrew Bible and the
New Testament of his book: chronological and geographical inaccuracies and contradictions, theological impossibilities (anthropomorphic expressions, stories of fornication and whoredom, and the attributing of sins to prophets), as well as lack of reliable transmission (
tawatur) of the text. Ibn Hazm explains how the falsification of the Torah could have taken place while only one copy of the Torah existed, kept by the
Aaronic priesthood of the
Temple in Jerusalem. Ibn Hazm's arguments had a major impact on Muslim literature and scholars, and the themes that he raised concerning tahrif and other polemical ideas were modified slightly by some later authors. The
Twelver Shia scholar
ibn Babawayh narrated a debate between
Ali al-Rida and the
catholicos where
Ali al-Rida, the
8th Imam of the Twelvers, claimed that the existing Gospels were created and changed after the original Gospel was lost. The concept of
tahrif has also been advocated by
Quranists such as
Rashad Khalifa,
Edip Yuksel, and
Ahmed Subhy Mansour, who believed that
previous revelations of God, such as the Tawrat and the Bible, contained contradictions due to human interference. They believed that the beliefs and practices of Islam should be based on the Qur'an alone. ==Types==