The torture of one who hurts one’s parents immensely: The torture of the one who hurts one’s parents immensely is very great, to the extent that one will not be among the first people to enter Paradise. Rather, one will enter it after being tortured, if Allah did not forgive one; this is because it is among the major sins.

 The Prophet, sallallahu ^alayhi wa sallam, said:

لاَ يَدْخُلُ الْجَنَّةَ عَاقٌّ

La yadkhulul-Jannata ^aqq.

Which means: “The one who harms one’s parents immensely will not enter Paradise,” i.e., this means that one is not among the first batch of people to enter Paradise. It does not mean that one is a blasphemer and will not be admitted to Paradise. (Narrated by al-Bukhariyy.)