Guy Ritchie's tribute to "Sherlock".

In Game of Shadows, the second movie of Sherlock Holmes by Ritchie, we can see this quote : “Come at once if convenient, if inconvenient, come anyway.”

This is also a famous quote from the BBC series Sherlock. But is it in the Canon, or is it a tribute to the UK series?

Actually, the original quote can be found in The Adventure of the Creeping Man… but it actually spells “Come at once if convenient — if inconvenient come all the same”.

Horray for double tribute!