Mid-Táng (Kāiyuán / Tiān-bǎo-era) Buddhist scholar-monk of the Jīngdì Qīngfā dàochǎng 京地清發道場 (“Capital-Region Clear-Initiation Bodhi-Site”). Lifedates unrecorded. Author of the Jīngāng yìng 金剛暎 (rare title-character 暎 = 映 “reflection”), a sub-commentary on Dàoyīn’s 道氤 Yùzhù Jīngāngjīng xuānyǎn (KR6c0105) — i.e., a third-order commentary: imperial annotation by Xuánzōng → xuānyǎn exposition by Dàoyīn → Jīngāng yìng sub-commentary by Bǎodá. Only the upper juan (卷上, KR6c0106, T85 no. 2734) survives, recovered from Dūnhuáng. The work opens by setting out a five-gate (wǔmén 五門) hermeneutic frame: 漸教興由門 (gate of the gradual-teaching’s arising), and four others for the four-fold xuántán jīngyì 懸談經義 + zhèng shì jīngwén 正釋經文 — standard Táng scholastic apparatus. DILA distinguishes him from at least one other Táng monk also called Bǎodá (an gǎntōng 感通 hagiographical figure, A?, separate person).