Khawaja also defended not revealing his version of the sandpaper saga at the time, or following the bowlers' statement in 2021, and instead waiting for his autobiography.
Khawaja retired from international cricket in January. He has maintained that the autobiography speaks only for him, and that he has not thrown anyone under the bus.
The argument is over a plot to alter the condition of the ball by rubbing it with sandpaper during the Cape Town controversy, and over which players knew.
Other players involved in the Cape Town controversy have repeatedly denied involvement or knowledge of the plot to alter the condition of the ball.
In October, it was revealed that Khawaja had met with Cummins to discuss the contents of the upcoming autobiography.
At the time, the only players punished were captain Steve Smith, vice-captain David Warner and opener Cameron Bancroft.
In 2021, the quartet released a joint statement which said they"did not know a foreign substance was taken on to the field"."I haven't thrown anyone under the bus,"Khawaja said."But I never speak on behalf of anyone else in my book, contrary to what the headlines in clickbait media would have you think.".