Who said That's the most ridiculous thing I ever heard?

The phrase "That's the most ridiculous thing I ever heard" is often attributed to various individuals in different contexts. However, it is famously associated with the character of Jerry Seinfeld from the sitcom "Seinfeld." In the show, this line captures the humor and absurdity that the series is known for. Additionally, the sentiment can be expressed by many people in response to outlandish statements or situations.