The Ratnagotravibhāga and its vyākhyā commentary, is an influential Mahāyāna Buddhist treatise on buddha-nature. The text is also known as the Mahāyānottaratantraśāstra. The RGVV was originally composed in Sanskrit, likely between the middle of the third century and no later than 433 CE. The text and its commentary are also preserved in Tibetan and Chinese translations.
A ritual vajra, a symbol of indestructibility, which is used in the RGV as an image of the adamantine-like permanence of buddha nature.
The Śrīmālādevī Siṃhanāda Sūtra is one of the main early Mahāyāna Buddhist texts belonging to the Tathāgatagarbha sūtras that teaches the doctrines of Buddha-nature and "One Vehicle" through the words of the Indian queen Śrīmālā. After its composition, this text became the primary scriptural advocate in India for the universal potentiality of Buddhahood.
Relief image of the Great Stupa at Amaravati in Andhra Pradesh, India