[The look of relief from Legolas probably makes it obvious to gandalf that it's someone very close.]

Thank you, Gandalf. You may have saved his hands, for all the time he avoid speaking of it with even me. If it grows worse, I shall convince him to come and see you. I only hope that, if it should come to that, he will see reason.

[Unfortunately, Legolas knows nothing about the Turks and their materia. And Haldir would likely refuse their help more vehemently than Gandalf's.]