Buddha said that unfilial parents' retribution.
The Buddha told Ananda. Unfilial person. Poor health leads to death. Fall into the abyss of hell. This big hell. It's 80,000 miles in vertical and horizontal directions, and all directions are from Tiantie City. Around the net. Its land is also iron. The fire is riddled with holes. Heavy artillery fire. Lightning and thunder. Melt copper and iron juice. Water sinners. Copper dog iron snake. Continue to spit fireworks. Cook. Grease burn Pain and sadness. Awkward. Hook and gun. Iron gun, iron hammer and halberd. Sword tree knife wheel. Like rain and clouds. In the air. Or cut or stab. Punish sinners. Be robbed. Never rest. Let it go to the rest of hell. Wear a brazier. The iron car ran over. Passing by. Intestinal and abdominal division. The flesh and blood are burnt. Within a day. Thousands of lives and deaths. Suffered so much. It's all because of the previous five unfilial acts. Therefore, he committed a crime.
The Buddha told the venerable Ananda:' Those who disobey their parents and are not filial to their parents will fall into the abyss of pain when their lives end in an unhealthy way. This big hell is 80 thousand in length and width, surrounded by high iron cities and strong nets. The ground is iron, too. Big fires burn up and down, and fierce flames burn everywhere. Thunder from the thunderbolt ran around on people, and lightning kept coming. The night in hell melted the red juice of copper and iron and watered the sinners who were punished; Copper dogs and iron snakes have been spitting out smoke and fire, or burning or cooking sinners, which makes the fat cream on sinners burn and the pain is unbearable. In mid-air, crochets, sharp guns and spears flew down to assassinate sinners, and the prison was full of iron clangs, chains, hammers, sharp guns and halberds, sword trees and sharp knives, flying all over the sky like rain clouds, shooting down from the air, or chopping with swords and spears, torturing sinners. In this way, after many long robberies, they are still suffering from the scourge of torture, and there is no moment to rest temporarily. Then, these sinners were sent to other kinds of hell to continue their torture, or wore burning braziers on their heads, or were crushed by iron carts, or were crushed by north and south or east and west, so that the intestines and stomach of the sinners were broken, and the bones and flesh were burnt and rotted. In one day, they died tens of millions of times of torture, and were suddenly brought back to life by the wind and rain. They were so miserable because they committed five kinds of serious transgressions and unfilial acts during their lifetime, such as killing their father, killing their mother, killing the saints of Arahant grosvenor, destroying the harmony of Buddhist monks, injuring the Buddha's body, and making the Buddha bleed, so they got such a heavy crime. "
Excerpt from "Buddha says parents are hard to repay"