大般涅槃経
Ekayāna sutras of primary influence are the "Lotus Sutra", the "Śrīmālādevī Siṃhanāda Sūtra", the "Ratnagotravibhāga" and the Tathāgatagarbha sūtras, which also include the "Tathāgatagarbha Sūtra", the "Mahāyāna Mahāparinirvāṇa Sūtra" and the "Aṅgulimālīya Sūtra". Sutras with similar teachings include the "Laṅkāvatāra Sūtra" and the "Avatamsaka Sutra". The "Lotus Sutra" declares that "the three vehicles of the Śrāvaka (disciple), Pratyekabuddha (Solitary Buddha), and Bodhisattva are actually just three expedient devices (upayacausalya) for attracting beings to the one buddha vehicle, via which they all become buddhas."