Èrzhǒng rù 二種入

Short Chán treatise on the “two entrances” (lǐ rù and xíng rù) and four practices, constituting the third gate of KR6q0084 Shǎoshì liù mén; the most plausibly archaic Bodhidharma-circle material in the compilation, with parallels in the Dūnhuáng Èrrù sìxíng lùn 二入四行論.