Pó-sù-bá-tuó 婆素跋陀 (*Vasubhadra; lifedates unknown), Indic arhat, traditionally the compiler of the Tridharmaka-śāstra — a triadic Abhidharma-style abstract of the four Āgamas. The same figure is referred to in Chinese sources by the calque 山賢 (“Mountain-Sage” / Sambhadra read as “Saṃ + bhadra” with 山 representing saṃ via parvata / giri — the etymological play is preserved in the doublet titles of KR6a0157 Sì-āhán-mù chāo jiě (T1505) and KR6a0158 Sānfǎ-dù lùn (T1506)).
Two Chinese translations of his summary survive: the partial Sìāhánmù chāo jiě (T1505) prepared at Yèsì in 382 CE under Dàoān’s direction, with 鳩摩羅佛提 holding the Sanskrit; and the more complete Sānfǎdù lùn (T1506), retranslated by 僧伽提婆 at Lúshān 廬山 in 391 CE. The doublet relationship is acknowledged in the Taishō by cross-reference at both texts.
Vasubhadra is sometimes identified — though disputed — with the slightly earlier Bahuśrutīya / Sāmmitīya master Vasumitra whose Abhidharma survives in Chinese as the Zūn-pó-xū-mì púsà suǒjí lùn 尊婆須蜜菩薩所集論 (T1549). The standard view (Frauwallner, Dessein, Mizuno) treats them as distinct.
Works in the Kanripo corpus: KR6a0157 Sìāhánmù chāo jiě, KR6a0158 Sānfǎdù lùn.