The book focuses on "Wahiyah" narrations—hadiths that are extremely weak, nearing the level of fabrication. Organized according to Islamic legal chapters (Fiqh), it serves as a specialized reference for scholars to identify narrations that cannot be used as evidence in religious rulings. Ibn al-Jawzi provides the chain of transmission for each hadith, identifies the untrustworthy or fabricated narrators, and explains the specific "defect" ('illah) that renders the text unreliable. It is an essential tool for preserving the purity of the Prophetic tradition from spurious additions.