三具足經 Sānjùzú jīng
Lost Mahāyāna scripture (Skt. Trisamucchaya-sūtra) on three perfecting-virtues — shī 施 (giving / dāna), jiè 戒 (moral discipline / śīla), and wén 聞 (hearing-of-the-Dharma / śruta) — said by the Buddha to comprehensively encompass the bodhisattva practice. No Chinese translation of the source text survives; the Vasubandhu upadeśa preserved in KR6i0593 Sānjùzú jīng yōubōtíshè is the principal surviving witness to the doctrine.