Canada (Citizenship and Immigration) v. Khosa, 2009 SCC 12, has been decided against Mr. Khosa.

The decision is one of the first that deals with the application of Dunsmuir. In doing so the Court re-emphasizes that standards of review are to be developed in the complete context of the tribunal being reviewed.

There isn’t really any single quote to be taken from the decision. You have to read the whole thing.