佛說觀佛三昧海經 5.16

5.16

佛告阿難：「云何名黑闇地獄？黑闇地獄者：十八重黑山、十八重黑網、十八重鐵床、十八重鐵縵。一一山高八萬四千由旬；一一縵亦厚八萬四千由旬；一一縵間，十八重黑鐵圍山，羅列如林廕闇此山。世間自有愚癡眾生，偷佛法僧燈明，偷盜父母、師長、和上，謗說法者，亦毀世俗論義師等，不忌尊卑不知慚愧。以此罪故命欲終時，眼有電光睒睒不停，即作是念：『我有何罪常見是火？』即閉兩目，不願欲見及日月光。命欲終時，獄卒羅剎擎大鐵床，張大鐵傘，如大隊雲乘空而至。

The Buddha said to Ānanda: "What is called the dark hell? As for the dark hell: there are eighteen layers of black mountains, eighteen layers of black nets, eighteen layers of iron beds, and eighteen layers of iron canopies. Each mountain is eighty-four thousand yojanas high; each canopy is likewise eighty-four thousand yojanas thick. Between each canopy, eighteen layers of black iron enclosing mountains are arrayed like a forest, casting darkness over these mountains. In the world there are naturally foolish sentient beings who steal the lamp lights of the Buddha, Dharma, and Saṅgha; who steal from their parents, teachers, and upādhyāyas; who slander those who preach the Dharma; and who also revile mundane debaters and teachers, showing no respect for the honorable or lowly, and having no sense of shame. Due to these sins, when their lives are about to end, lightning flashes unceasingly before their eyes. They immediately think: 'What sin have I committed to constantly see this fire?' They then close both eyes, not wishing to see [it] or the light of the sun and moon. When their lives are about to end, the rākṣasa hell-wardens hold aloft great iron beds and spread great iron umbrellas, arriving through the air like a massive cloud.