Which conclusion is NOT directly established by report 69?

Reports of ʿAmr ibn ʿUbayd: Attribution, Conflicting Accounts and Evidence of Criticism

• Ayyūb expressly claimed hearing from al-Ḥasan
• A contradiction of ʿAmr’s attribution is reported
• Every detailed ruling on all kinds of nabīdh is settled
• A source attribution may be challenged by a conflicting report