Luke 15:26

And he called one of the servants, and asked what these things meant.

Cross-reference

Luke 18:36 Parallel

Luke 18:36 shows a blind man asking what is happening — a parallel inquiry about an event, but different contexts.

Acts 2:12 Parallel

Acts 2:12 has the crowd asking 'What does this mean?' — a direct parallel to the servant's inquiry about the celebration.