Jiānhuì púsà 堅慧菩薩 (*Sāramati)
Indian Buddhist master conventionally dated to the late fourth or early fifth century CE — placed by the Indian-Buddhist hagiographic tradition between Asaṅga and Vasubandhu, though Tibetan sources sometimes locate him earlier. Chinese tradition (preserved in the Cí’ēn / Hua-yan commentaries) attributes to him two short Tathāgatagarbha treatises preserved in Chinese only: the Mahāyāna-dharmadhātu-aviśeṣa-śāstra — translated by 提雲般若 (Devaprajñā) twice during the Wǔ Zé-tiān era — as KR6n0089 Dà-shèng fǎ-jiè wú chā-bié lùn 大乘法界無差別論 (T31n1626) and KR6n0090 (T31n1627). The two are essentially the same text in slightly different recensions; both attribute authorship to Sāramati.
In some Tibetan and East Asian traditions Sāramati is also identified with the redactor of the Ratnagotravibhāga commentary, a position now generally accepted in modern critical scholarship (Takasaki 1966) — i.e. that Sāramati is the human author who systematised the traditionally Maitreya-attributed Uttaratantra-śāstra into its received form. If this identification is correct, then Sāramati is one of the principal architects of the Indian Tathāgatagarbha tradition, alongside Asaṅga and the (anonymous) author(s) of the Ratnagotra verses themselves.
The Chinese translation of his short Dharmadhātu-aviśeṣa is the basis for KR6n0091 Dà-shèng fǎ-jiè wú chā-bié lùn shū by 法藏 (T44n1838) and the subsequent Hua-yan school commentarial development of the doctrine.
Per DILA Buddhist Person Authority A001125.