Déhuì fǎshī 德慧法師 (reconstructed Sanskrit Guṇamati, also rendered 求那末底) was an Indian Yogācāra master active at Nālandā in the second half of the fifth century, the teacher of Sthiramati (安慧 Ānhuì) and a major figure in the early Yogācāra interpretive tradition. Tibetan and Indian sources record him as a leading commentator on Vasubandhu and Asaṅga; in the Chinese tradition he is principally known as the author of the Suíxiàng lùn 隨相論 KR6o0045 (T1641), translated by 真諦 (Paramārtha) under the Chén 陳 dynasty. The Chinese version preserves a single-juǎn fragment of what was a much larger sub-commentary on Vasubandhu’s Abhidharmakośa-bhāṣya — Guṇamati’s full bhāṣya-commentary survives in Tibetan as the Tattvārthā (De-bzhin gshegs-pa’i don). Lifedates are conventional, c. 420–500.