An important example involves Abū Hurayrah's report about the double reward of a righteous slave. Some combined recitations also include personal aspirations concerning fighting in Allah's cause, pilgrimage, and kindness to his mother.
Critical comparison identifies the personal aspiration as Abū Hurayrah's own statement, not prophetic wording. The genuine prophetic message is preserved while the Companion's independent speech receives the correct attribution.
Principle: Because the opening clause is marfūʿ, it does not follow that every subsequent sentence is also marfūʿ. When an added clause is demonstrably a Companion's speech, the clause is mawqūf; the entire report need not be discarded.