Buddhayaśas (Fótuóyéshè 佛陀耶舍, “Awakened Fame”; nicknamed Chìzī Pípóshā 赤髭毘婆沙, “Red-Bearded Vibhāṣā Master”) was a Kashmirian (罽賓) monk active in Cháng’ān under the Yáo-Qín 姚秦 court. According to the Gāosēng zhuàn 高僧傳 (T2059, 333c–334b) and the Chū sānzàng jì jí 出三藏記集 (T2145, 102), he was reputed for memorizing the entire Vinaya- and Sūtra-piṭakas; Kumārajīva (鳩摩羅什) had been his student in Kashmir, and at Kumārajīva’s invitation he travelled east, arriving in Cháng’ān in Hóngshǐ 弘始 10 (408 CE). At the request of Yáo Xìng’s 姚興 brother Yáo Shuǎng 姚爽 he led, with 竺佛念 (Zhú Fóniàn) as Chinese-language collaborator, the translations of the Dharmaguptaka Vinaya (《四分律》, Sìfēn lǜ, completed 412) and the [[KR6a0001|Cháng Āhán jīng 長阿含經]] / Dīrgha-āgama (completed 413). He also translated the Sìfēn sēngjièběn 四分僧戒本 (T1430), the Sìfēn bǐqiū jièběn 四分比丘戒本 (T1429) and is reported to have brought the Xūkōngzàng púsà jīng 虛空藏菩薩經 (T0405) back to Liángzhōu. After completing his work in Cháng’ān he returned westward; his death-place and date are not securely recorded.