There's been some mistake. Here is the man you want.
5 seconds sound clip from the A Funny Thing Happened on the Way to the Forum movie soundboard.
You can hear this line at 00:51:40 in the Blu-ray version of the movie.
Quote context
[...]
- I am dazzled by your presence.
- It is a sad tale I have to tell, courageous captain. Bad news...
- There's been some mistake. Here is the man you want.
- Tell him. Tell him who I am.
- Well, everybody knows who you are, Lycus.
- No, no, tell him who I am. Tell him.
- Rely on me. He is Marcus Lycus.
- Sire, if you but look within, you will find none but hooded men.
- We are a holy order, an ancient brotherhood of lepers, unclean. Unclean.
[...]