小便不计多少，大约两桶为一担。先以清水， 好皂角浓汁。以布绞去滓。每小便一担
桶，入皂角汁一盏，用竹篦急搅，令转百千遭乃止。直候小便澄清，白浊者皆碇底，乃徐徐
撇去清者不用。只取浊脚，并作一满桶。又用竹篦子搅百余匝，更候澄清。又撇去清者不用，
十数担，不过取得浓脚一二斗。其小便，须是先以布滤过，勿令有滓。取得浓汁，入净锅中
煎干，刮下捣碎。再入锅，以清汤煮化。乃于筲箕内，丁淋下清汁，再入锅熬干，又用汤煮
化，再依前法丁淋。如熬干色未洁白，更准前丁淋，直候色如霜雪即止，乃入固济砂盒内。
歇口火 成汁，倾出，如药未成窝。更 一两度，候莹白五色即止。细研入砂盒内固济，顶
火四两，养七昼夜。（久养火尤善）再研，每服二钱，空心温酒下，或用枣肉为丸，如梧桐
子大每服三十丸，亦得，空心服。阳炼日午服，阴炼夜半服。广南有一道人，惟与人炼秋石
为业，谓之还元丹。先大夫曾得瘦疾，且嗽凡九年，万方不效，服此而愈。郎侍郎简师南海，
其
掷下数十粒，曰此道人丹也。及旦卧席上，得药十余粒，正如梦中所见。及先大夫到番禺
郎首问此丹。先大夫乃出丹示之，与梦中所得不异，妻服之即愈。又予族子尝病颠眩，腹
久之渐加喘满。凡三年垂困，亦服此而愈，皆只是火炼者。时予守宣城，亦大病逾年，
急以书劝予服此丹，云实再生人也。予方合炼，适有一道人，又传阴炼法。二法相兼，其药
能动人骨髓，无所不至，极秘其术，久之方许传。依法服之，又验。此药不但治疾，可以常
服，有功无毒。予始得之甚艰，意在救济人，理不当秘。火炼秋石，人皆能之。煎炼时须大
作炉鼎，煎炼数日，臭达四邻。此法极省力，只一小锅便可炼，体如金石，永不暴润，与常
法功力不侔。久疾人只数服便效，予偶得之，极为神妙。
无论小便量多少，通常以两桶为一担。先用清水和浓皂角汁，用布绞去渣滓。每加入一担（两桶）小便，放入一盏皂角汁，用竹篦子快速搅拌，直到搅动百千次才停止。一直等到小便澄清，白浊之物都沉淀到底部，然后慢慢撇去上层清液不用。只取底部的浑浊沉淀物，合并装满一桶。再用竹篦子搅拌一百多圈，等待再次澄清。又撇去清液不用，处理十数担小便，不过能取得浓稠的沉淀物一二斗。这些小便，必须先经过布过滤，不要让它含有渣滓。取得浓汁后，放入干净的锅中煎至干燥，刮下来捣碎。再放入锅中，用清水煮化。然后在竹筛内滴沥滤下清汁，再放入锅中熬干，又用水煮化，再依照前面的方法滴沥。如果熬干后颜色不够洁白，更准确地重复滴沥过滤，一直等到颜色像霜雪一样洁白才停止，然后放入固济过的砂盒中。歇去口火，炼成汁液，倒出，如果药没有形成窝状。再炼一两遍，等到晶莹洁白、呈现五色光泽就停止。细细研磨后放入砂盒中固济，顶部放四两火硝，养护七昼夜。（长时间养护火气尤其好）再研磨，每次服用二钱，空腹用温酒送服，或者用枣肉做成丸药，如梧桐子大小，每次服用三十丸，也可以，空腹服用。阳炼法在中午服用，阴炼法在半夜服用。广南有一位道人，专门替人炼制秋石为业，称之为还元丹。先父曾经患有消瘦之疾，并且咳嗽长达九年，各种方法都不见效，服用此药而痊愈。郎侍郎简师从南海回来，他扔下几十粒药丸，说这是道人的丹药。到了早晨躺在席子上，得到药丸十余粒，正如梦中所见。等到先父到达番禺，郎首先询问此丹。先父拿出丹药给他看，与梦中所得的不一样，妻子服用后即痊愈。我又曾有一个族子患颠眩病，腹部胀满很久逐渐加重气喘胸闷。三年几乎濒死，也服用此药而痊愈，都只是用火炼制的。当时我守卫宣城，也大病超过一年，急忙写信劝我服用此丹，说确实是让人再生的人。我正在合炼此药，恰好有一位道人，又传授了阴炼法。两种方法兼用，此药能深入骨髓，无所不至，极其保密其技术，过了很久才允许传授。依法服用，又验证有效。此药不但治疗疾病，可以经常服用，有功无毒。我开始得到它非常艰难，意在救济世人，按理说不应当保密。火炼秋石，人人都能做到。煎炼时需要大做炉鼎，煎炼数日，臭味传到邻居。此法极省力，只要一个小锅就可以炼制，体质如金石，永不暴润，与常法的功力不相上下。久病之人只服几剂便见效，我偶然得到它，极为神妙。
Regardless of the volume, typically two buckets constitute one "dan" (a unit of measure). First, use clear water and a strong decoction of Gleditsia Sinensis Fruit (Saojiao) juice. Strain the residue using cloth. For every one "dan" (two buckets) of urine, add one "zhan" (a unit of measure) of Sijiao juice, and stir vigorously with a bamboo spatula until it has been stirred hundreds or thousands of times. Continue until the urine becomes clear, and the turbid white sediment settles at the bottom. Then, slowly skim off and discard the clear supernatant. Only collect the turbid sediment at the bottom, combining them into one full bucket. Stir again with a bamboo spatula for over a hundred turns, wait for clarification, and once more discard the clear liquid. Processing ten to twenty "dan"s of urine yields only one or two "dou" (a unit of measure) of concentrated sediment. The urine must first be filtered through cloth to ensure no residue remains. Place the concentrated sediment in a clean pot and boil it dry. Scrape it out and crush it. Return it to the pot, dissolve it with clear water, and then drip-filter the clear liquid through a bamboo sieve. Boil this filtrate dry again, dissolve it with water, and repeat the dripping filtration process as before. If the dried product is not sufficiently white, repeat the dripping filtration accurately until the color resembles frost and snow. Then, place it in a sand crucible sealed with traditional sealing paste (Guji). Extinguish the direct flame, melt it into a liquid, and pour it out. If the medicine does not form a cavity, refine it one or two more times until it is crystal clear and exhibits five colors. Grind it finely, place it back into the sealed sand crucible, and add four liang of Niter (Xiaoshi) on top. Cultivate it with fire for seven days and nights (prolonged cultivation is even better). Grind it again. Take two qian per dose, swallowed with warm wine on an empty stomach. Alternatively, make pills with jujube flesh, sized like paulownia seeds, taking thirty pills per dose on an empty stomach. The Yang refinement method is taken at noon; the Yin refinement method is taken at midnight. In Guangnan, there was a Daoist priest who made a living refining Qiu Shi (Stone from Human Urine), calling it Huan Yuan Dan (Return to Origin Pill). My late father once suffered from emaciation and coughing for nine years, to which all other remedies failed. He recovered after taking this medicine. Lang Shilan returned from Nanhai, throwing down dozens of pills, saying, "This is the Daoist's pill." The next morning, lying on his mat, he found over ten pills, exactly as seen in his dream. When my late father arrived in Panyu, Lang asked about the pill first. My late father showed him the pill, which differed from those in the dream, but his wife recovered immediately after taking it. Another relative of mine once suffered from vertigo and dizziness, with abdominal distension worsening into asthma and chest fullness over a long period. After nearly three years on the brink of death, he also recovered by taking this medicine, which was refined by fire. At that time, I was guarding Xuancheng and had been seriously ill for over a year. Someone urgently wrote to advise me to take this pill, claiming it truly brings people back to life. I was in the process of preparing the refinement when a Daoist priest happened to arrive and transmitted the Yin refinement method. Combining both methods, the medicine penetrates deeply into the bone marrow, reaching everywhere. The technique was kept extremely secret and allowed to be passed down only after a long time. Following the method, its efficacy was verified again. This medicine not only treats diseases but can also be taken regularly; it provides benefit without toxicity. I initially obtained it with great difficulty, intending to relieve others, so logically it should not be kept secret. Fire-refined Qiu Shi can be done by anyone. The refining process requires large furnaces and cauldrons, lasting several days, with the odor reaching neighbors. This method is extremely labor-saving; only a small pot is needed. The resulting substance is hard like metal and stone, never becoming damp or soft, and its efficacy far surpasses common methods. Those with chronic illnesses see effects after just a few doses. I happened upon it, and it is exceedingly miraculous.