The Qur'an is fully detailed and comprehensive in its instructions, leaving no important details omitted.

The Qur'an asserts its own completeness and clarity in various verses, suggesting that it provides all necessary guidance for believers. However, numerous scholars have pointed out that many passages are ambiguous and lack the necessary context for proper interpretation. For instance, the discussion surrounding wine and intoxicants in the Qur'an is inconsistent, leading to confusion among readers. This inconsistency is not merely a matter of interpretation but is rooted in the text itself, which has been described as containing numerous irregularities in language and structure. Such issues have prompted extensive commentary and debate among Islamic scholars, indicating that the Qur'an does not stand alone as a fully comprehensible text. Moreover, the reliance on commentaries to understand the Qur'an suggests that it does not fulfill its claim of being a fully detailed scripture. If the text were truly comprehensive, there would be no need for external explanations to grasp its meaning. The discrepancies noted by scholars like Ali Dashti highlight the challenges faced by readers trying to navigate the complexities of the Qur'an. Ultimately, the assertion of the Qur'an's completeness is undermined by the evidence of its linguistic and thematic inconsistencies, which require additional resources for clarity and understanding.