Mahāyāna Mahāparinirvāṇa Sūtra
According to Sallie B. King, the "Mahāyāna Mahāparinirvāṇa Sūtra" does not represent a major innovation. Its most important innovation is the linking of the term "buddhadhatu" with "tathagatagarbha". According to King, the sutra is rather unsystematic, which made it "a fruitful one for later students and commentators, who were obliged to create their own order and bring it to the text". The sutra speaks about Buddha-nature in so many different ways, that Chinese scholars created a list of types of Buddha-nature that could be found in the text. One of those statements is: