Èrrù sìxíng lùn 二入四行論

Early-Chán treatise on the “two entrances” and four practices preserved in the Dūnhuáng manuscript tradition; the principal pre-compilation witness for the Èrzhǒng rù material that became gate 3 of KR6q0084 Shǎoshì liù mén. Standard critical edition by Yanagida Seizan in his Daruma no goroku (1969).