《云笈七签》卷六十九《金丹部·七返灵砂论·第四返妙砂篇》 :“去泥 ,出锅子 ,依前篇安瓶子中 ,入真汞四两 ,清水五合 ,不得增减 ,养之二七日后 ,更添汞四两 ,又火养经七日后 ,令干 ,固济之 ,以武火迫之一日 ,而妙砂涌出 ,可有四两 ,即收之。”又《第五返灵砂篇》 :“即以黄 “Cloud 笈 七 签” volume sixty-nine “Jindan Department · Seven Back to Ling sand theory · fourth return wonderful sand articles”: “Go to the mud, the pot, according to the first chapter ampoules, into the real Mercury four two, water Wuhe, shall not increase or decrease, after raising the 27th, but also add mercury four hundred and two, but also after seven years of raising fire by the dry, solid economic, with the force of fire one day, and wonderful sand gush, there may be four two , That is received. ”And“ the fifth re-Ling chapter ”:" That yellow