Source: The Great Interpretation of Dreams (Ibn Sirin)
Tearing the Quran in a dream indicates denying God's blessings and corruption in religion.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
Tearing the Quran indicates committing a major sin or abandoning religion.
Source: Signs in the Science of Expressions (Ibn Shaheen)
Tearing the Quran is interpreted as worry and misguidance.