金光明經文句記 3.220

3.220

六、「若有」下，能破眾生八難流轉。即經云諸難也。八難者，三塗為三；人中有四：一盲聾瘖瘂、二世智辯聰、三佛前佛後、四北州；天上一，謂無想或長壽天。

Sixth, from "If there are..." onward, being able to shatter sentient beings' transmigration through the eight difficulties. This refers to what the sūtra calls "the various difficulties." As for the eight difficulties: the three wretched paths constitute three; among humans there are four: first, blind, deaf, mute, and paralyzed; second, worldly wisdom and eloquence; third, before or after a Buddha; fourth, Uttarakuru; in the heavens there is one, namely the heaven of no-thought or long life.