In those exact words? Never, everything after the word 'manual' was my addition, but if you would like, I'm sure I can find plenty of examples of the words "How far have you read the manual" as the only line in your reply to someone asking a question.
Lots of times, this was before the present configuration of the manual which is now split up in to separate sections and is fairly well organized when it was presented in the single 378 page User guide.
I seem to remember getting one of those types of replies myself, to an early question. Someone else you answered in that way said what I was thinking at the time, but I was a little more restrained in my answer (back then).