Comedian Bill Maher recently made headlines for criticizing fellow comic Dave Chappelle and other comedians for their performances at a comedy festival. Maher, known for his outspoken views on politics and culture, pointed to the lack of free speech in certain countries, human rights abuses, and even mentioned the country’s involvement in 9/11.

During an episode of his HBO show, Real Time, Maher discussed Chappelle’s comments about free speech in comparison to America. Maher challenged Chappelle’s statement by suggesting that speaking freely in Saudi Arabia may not be as easy as Chappelle claimed. Maher even went as far as daring Chappelle to make a joke about the Islamic prophet Muhammad in Saudi Arabia to test the limits of free speech.

In response to Maher’s criticisms, Chappelle fired back in his new Netflix stand-up special with a profanity-laced tirade. The tension between the two comedians sparked a debate about the boundaries of free speech and the role of comedy in addressing sensitive topics.