What is the religious punishment for disobeying parents?

Answer

In the name of Allah, know, my son, that disobedience (to parents) constitutes, Allah forbid, two crimes: one against Allah Almighty, involving transgression against His limits and rejection of His commands, and the other against the parents. To avoid the punishment from Allah, repentance and seeking forgiveness must be continuous. To resolve the second (crime), it is necessary to please the parents by every possible means, whether they are alive or deceased. If one or both have passed away, the child must seek forgiveness for them and perform good deeds with the intention of pleasing them on the Day of Judgment. Additionally, the child should continue reciting the special supplication for Mondays found in the book of Mafateehul Jinan (The Keys to Paradise) and others. Allah knows best.