Táng-period Chán master at the otherwise unknown Wǔyīnshān Kōngsì 五陰山空寺. He is unattested in the Sēngzhuàn 僧傳 corpus, and his life-dates cannot be fixed except by inference: his only surviving work — a partial verse-by-verse commentary on the apocryphal Fó wèi Xīnwáng púsà shuō tóutuó jīng (KR6v0009) — is preserved in four Dūnhuáng manuscripts (Beijing Library Běixīn 1569, S.2474, P.2052, Mitsui Bunko 三井文庫) and exhibits the freewheeling early-Chán liù jīng zhù wǒ 六經註我 hermeneutic style typical of the eighth century. The commentary breaks off in the middle of the host sūtra, suggesting Huìbiàn intended a two-fascicle work but never completed it.