What is the position of adult sons who are disobedient to their parents?

Answer

Children who are disobedient to their parents or who neglect their parents, are under the curse of Allah Ta'ala and His Malaaikah. The special curses of Jibraeel (Alayhis salaam), of Rasulullah (Sallallahu alayhi wasallam), of the Malaaikah and Allah Azza Wa Jal are on such vile children. It comes in the Hadith that their acts of ibaadat are not accepted by Allah Ta'ala. Even on the auspicious Nights of Baraa'at and Qadr, they are not enshrouded by Allah's special Rahmat which descends for all Muslims. In addition to punishment in the Aakhirat, disobedient children will be punished here on earth as well with calamities. It is also possible that such children may die without Imaan.