He doesn't know his own mother.
4 seconds sound clip from the The Fortune Cookie (1966) movie soundboard.
You can hear this line at 00:09:33 in the Blu-ray version of the movie.
Quote context
[...]
- Harry? Harry, baby, how do you feel? It's me, Mama.
- And Charlotte is here, and Willie and Ginger and Jeffrey.
- He has a mild concussion. We've put him under sedation. He'll rest comfortably tonight.
- This is Harry Hinkle on camera four.
- He doesn't know his own mother.
- Doc, any ruptures, broken bones, internal bleeding?
- You don't think so? How long you been out of medical school?
- Sir?
- Okay, Louie, you pick up the band. I'll pan with the pom-pom girls.
- Wait a minute! Where are you taking him?
[...]