How do tawatuʾ and tawafuq ʿala al-kadhib differ?

Introduction to Hadith Methodology and Mutawatir Reports

• Tawatuʾ is deliberate collusion; tawafuq is coincidental agreement
• Both describe transmitters’ ages
• Tawatuʾ always means truth; tawafuq always means precision
• Tawatuʾ concerns only matn; tawafuq only isnad