A report explicitly says “the Messenger ﷺ said” but a transmitter is missing from its chain. Which assessment is correct?

Companions, Successors, Mukhāḍramūn, and Attribution of Reports

• The attribution is marfūʿ, while the chain may be interrupted
• Marfūʿ guarantees a connected chain
• It automatically becomes mawqūf
• It is necessarily a Successor’s maqṭūʿ statement