"was it "in" the furniture or "on" the furniture that the player said three rooms ago?
And that brings up a great tertiary point. People suck at remembering. Three pages ago? Three days ago? Three sessions ago? Three years ago? Doesn't make a difference.
I can however guarantee you that an hour later in a session, 1 or fewer people will remember the exact words the player used on the 57th attempt to search the room.