Quánmíng 詮明 (fl. c. 982–1031 CE) was a Liao-dynasty Yogācāra specialist monk based at Mǐnzhōng sì 憫忠寺 (modern Fǎyuán sì 法源寺, Beijing). He was honored with the title Wú’ài Dàshī 無礙大師 (“Unobstructed Master”) by the Liao Emperor Shèngzōng 聖宗 (r. 982–1031). In Tǒnghé 統和 8 (990 CE) he founded the Śākyamuni hall at Mǐnzhōng sì. He is also referred to in later sources as 詮曉, a name adopted by later copyists to avoid the taboo name of the Liao Emperor Mùzōng 穆宗.
Quánmíng was a prolific and systematic commentator in the Fǎxiàng 法相 (Yogācāra/Weishi) tradition, described by the DILA authority as “尤通唯識學.” He compiled the Xù Kāiyuán shìjiào lù 續開元釋教錄 (3 fascicles), continuing the standard Tang-dynasty Buddhist bibliographic catalog. Among his surviving works are the Shàngshēng jīng huì gǔ tōng jīn xīn chāo 上生經會古通今新抄 (KR6i0045, preserved in Sòngzàng yízhēn, originally 4 fascicles; fascicles 2 and 4 survive), and a number of works preserved in the Yìng xiàn mùtǎ liáodài mìzàng 應縣木塔遼代秘藏 (Liao dynasty hidden cache from the Yìng County wooden pagoda). He wrote commentaries on the Lotus Sūtra (Fǎhuá jīng 法華經) via the Wéimóyuèchēng commentary and on the Chéngyùshí lùn 成唯識論, reflecting the full breadth of Tang-Liao Yogācāra learning.
A hagiographic account (from the Sānbǎo gǎnyìng yào lüè lù 三寶感應要略錄) records that Quánmíng vowed to be reborn in Tuṣita Heaven with Maitreya, commissioned a three-cun carved sandalwood image of Maitreya, and shortly before his death had a vision in which the image grew and spoke to him, promising rebirth. His death was accompanied by a vision reported by an attendant of hundreds of blue-clad figures coming to welcome him. His principal disciple was 智光 Zhìguāng.
Note: The Sòngzàng yízhēn catalog header erroneously attributes KR6i0045 to “唐 詮明” (Tang dynasty), but DILA A001493 and the content of the texts confirm a Liao dynasty date.