Hurvitz–Lotus Sutra–part 39. Life Span of the Thus-Come-One. Shakyamuni declares that he is but an impermanent vessel for the dharma to teach ordinary beings that it exists throughout all time without ceasing.

E-books – “Threefold Lotus Dharma Sutra” - TBD

Threefoldlotus.com/home/Ebooks.htm