According to authorities the only clue is a white monogrammed man's glove with the initial 'P'.
6 seconds sound clip from the The Return of the Pink Panther (1975) movie soundboard.
You can hear this line at 00:38:05.844 in the Blu-ray version of the movie.
Quote context
[...]
- Please, come on. Don't be silly. No.
- The impact will be too strong.
- Well, all right. There you go.
- What?
- I think I came back just in time.
- Damn.
- According to authorities the only clue is a white monogrammed man's glove with the initial 'P'.
- That you didn't spend your time just painting during my absence.
- Oh. You think I had something to do with the robbery?
- Four years ago I swore to you that I was retired.
- I've been faithful to you ever since.
- What the hell does that mean?
[...]