I say there are several opinions, Some say they hear, some say They hear but it does not benefit them so it's like they never heard, some say they don't hear at all... only at the beginning they hear the footsteps of those who are burying them and then they are faced with the angels and are asked in the grave about what they did (This is the torture part) and then they never hear anymore. I've personally not taken an opinion yet as I never researched this myself, But I was asking you what your proof is for them Not hearing... just out of curiosity.