Maqlūb and an extra narrator in the chain

Read-only question overview. Answers and scoring remain inside authenticated learner attempts.

• Which words exchange positions in the charity example?
• Where may reversal occur in maqlūb?
• When must the original be disclosed in reversal for examination?
• Which name is identified as additional in the Ibn al-Mubārak example?
• To whom is the Sufyān-addition error attributed here?
• What does sami‘tu mean?
• Are all additions rejected merely because a chain has more names?