Dà dòng liàn zhēn bǎo jīng jiǔ huán jīn dān miào jué 大洞鍊真寶經九還金丹妙訣

Wondrous Instructions on the Nine-Reversion Gold-Elixir according to the Great-Cavern Precious Scripture of Refining the Perfected

by 陳少衛 (Chén Shàowèi, fl. 712–734) — mid-Táng Daoist alchemist

Companion-text to KR5c0288: Chén Shàowèi’s instructions on the nine-reversion gold-elixir (jiǔ huán jīn dān 九還金丹). Composed in the Kāi yuán reign (712–734). Preserved as DZ 891 / CT 891 (Dòngshén bù, Zhòng shù lèi 洞神部眾術類).