A Successor says “The Messenger ﷺ said” but omits the Companion. Which classification is correct?

Musnad Reports, Chain Elevation and Descent, and Four Forms of Relative Elevation

• Connected and mawqūf
• Marfūʿ in attribution but mursal, not musnad here
• Maqṭūʿ and absolutely elevated
• Musāwāh and muṣāfaḥah