Kitab al-wadih bi-l-haqq
Copto-Arabic treatise against Islam
The Kitāb al-wāḍiḥ bi-l-ḥaqq (Arabic: كتاب الواضح بالحق), known in Latin as the Liber denudationis (lit. 'Book of Denuding'), is a Copto-Arabic apologetic treatise against Islam. It was written by a Muslim convert to Christianity, Būluṣ ibn Rajāʾ, around 1010 in Fāṭimid Egypt. Its purpose is to provide a refutation of Islam on the basis of the Qurʾān and the ḥadīth (tradition). It was translated into Latin in the 13th century, probably in Toledo. It had much greater influence in translation than in its original language.
Title
The Kitāb al-wāḍiḥ bi-l-ḥaqq has a complicated title. The Arabic title is difficult to translate and has been translated many ways. The word kitāb means "book" and al-Wāḍiḥ was the author's nickname, meaning "one who exposes", "one who clarifies", "the exposer", "the clarifier" or "the unveiler". The phrase bi-l-ḥaqq recalls certain passages in the Qurʾān that refer to the kitāb bi-l-ḥaqq. This may be translated as "book [or scripture] with [regard to] the truth" or else as an emphatic expression, "the book in truth".
“Kitab al-wadih bi-l-haqq” enters the record as copto-Arabic treatise against Islam. Crown Archives preserves that source wording while asking what Kitab, al-wadih and bi-l-haqq can confirm, complicate or overturn.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 25, 2025. The linked authority identifier is Q115825710. VIAF identifies the subject as 226377357. None of the 3 selected statements returned an explicit reference. The first chronological checks are 1010.
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This entry incorporates text from “Kitab al-wadih bi-l-haqq” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.