This article aims to analyse the law of doubting the authenticity of the Quran from the perspective of the fatwa of the Indonesian Ulema Council. The urgency of this research is to revisit the sacredness of the Quran as an answer to the criticism of the challengers. This research uses a qualitative method with a literature study approach. Primary data through Q.S. Al-Hijr verse nine, and Q.S. Al-Baqarah as Naqli arguments and Aqli arguments referring to MUI Fatwa as core data. Secondary data in the form of scientific articles and books of interpretation. Data analysis techniques using the Tahlili interpretation method and content analysis. The results showed that at the level of Naqli's arguments, the authenticity of the Quran is undeniable because the literature says there is no doubt in the Quran, and Allah maintains its authenticity. This is the reason why the content of the Quran remains the same despite the efforts of those who want to falsify it. Authenticity at the level of Aqli evidence is the consistency of the Quran's language and structure, accurate scientific content, predictions,
and prophecies that prove accurate, ethical, and aesthetics of the message that contains moral values.