正月忌日∶初一 初五 初九 十三 十四 十五 二十三 二十八 晦 弦 立春 立春前一日
二月忌日∶初一 初三 初五 十一 十四 十五 二十三 二十八 晦 弦 社 惊蛰 春分 春分前一日
子丑 酉 子午卯酉乙未庚申四冲不收日
三月忌日∶初一 初三 初五 初九 十四 十五 二十三 二十八 丑 戌 晦 弦 清明 谷雨 辰未申
酉四冲不收日
四月忌日∶初一 初三 初五 初八 十四 十五 二十三 二十八 未 晦 弦 立夏 立夏前一日 小满
寅申巳亥未酉辰并壬子丙戌四冲不收日
五月忌日∶初一 初三 初五 初六 初七 初九 十四 十五 十六 十七 十九 二十三 二十五 二十
六二十七 二十八 二十九 晦 弦 芒种 夏至 夏至前一日 卯 申
六月忌日∶初一 初三 初五 十四 十五 二十三二十四 二十八 子 戌 晦 弦 小暑 大暑 伏 子
辰戌丑未并壬子癸亥四冲不收日
七月忌日∶初一 初三 初五 初七 初十 十四 十五 二十三 二十八 二十九 晦 弦 伏 立秋 立
秋前一日 处暑 酉 卯 亥 寅申己亥并乙卯四冲不收日
八月忌日∶初一 初三 初五 初十 十四 十五 二十三 二十七 二十八 晦 弦 社 白露 秋分 秋
分前一日 午 未 子午卯酉并辛丑甲寅四冲不收日
九月忌日∶初一 初三 初五 初九 十四 十五 二十三 二十五 二十八 晦 弦 寒露 霜降 亥 寅
未 辰 戌 丑 未并乙卯四冲不收日
十月忌日∶初一 初三 初五 初六 初十 十五 二十二 二十三 二十八 晦 弦 立冬 立冬前一日
小雪寅 亥 寅 申己亥并壬申丙午四冲不收日
十一月忌日∶初一 初三 初五 初六 十一 十五 二十三 二十五 二十八 晦 弦 大雪 冬至 冬至
前一日 酉 申 戌 子午卯酉并壬辰丁己四冲不收日
十二月忌日∶初一 初三 初五 初八 十五 十六 二十三 二十五 二十八 晦 弦 小寒 大寒 辰
巳午 辰戌丑未并丁巳丙午四冲不收日
案《道经》）云∶男女交媾，最有避忌。若犯所忌，天夺其算，神降之殃，生子丑貌怪相，性行不良，生理残障夭札，实
有明验。奉劝求嗣者，用小纸将日期录出，贴于壁上，每逢禁忌，当谨遵之。（《种子心法》参《祈嗣真诠》）
又忌枯焦日∶正月（辰） 二月（丑） 三月（戌） 四月（未） 五月（卯） 六月（子） 七月（酉） 八
月（午） 九月（寅） 十月（亥） 十一月（申） 十二（巳）
诗∶九空焦坎日枯焦，嫁娶求男忌此宵。
曰∶普劝世人知禁避，何愁玉树不抽条。
又忌非时非地犯者。
昼合（不详），星月下，灯光下（削禄夺纪），烈风雷雨（损寿，产恶胎），酷暑严寒（得重病）。庙寺之中，井灶圊
厕，灵柩冢墓之旁（恶人降胎，有害身命）。祖先父母诞日讳日（减寿一年）。夫妇生日、本命日（受祸得病）。郁怒（大
怒伤肝必病）、远行（行房百里者病，百里行房者死），醉后（醉后行房，五脏反复），空腹（伤元神）、胎前（伤胎难产），
产后（百日内致妇多病），天癸来时（男女俱损），病后（变病不痊）。种种非犯，报祸最烈。
若能慎于居处而清心寡欲，谨守待时，何患嗣之不得耶。敢为不知禁忌者告焉。（《保命集》）
【行房禁忌】
正月忌讳的日子：初一、初五、初九、十三、十四、十五、二十三、二十八、晦日（每月最后一天）、弦日（农历每月初八和廿三）、立春、立春前一天。
二月忌讳的日子：初一、初三、初五、十一、十四、十五、二十三、二十八、晦日、弦日、社日（祭祀土地神的日子）、惊蛰、春分、春分前一天。以及地支为子、丑、酉的日子，以及干支组合为乙未、庚申且与出生年柱相冲的“不收日”（指气场不稳定、不宜进行重要活动的日子）。
三月忌讳的日子：初一、初三、初五、初九、十四、十五、二十三、二十八、丑日、戌日、晦日、弦日、清明、谷雨、以及地支为辰、未、申、酉且与出生年柱相冲的“不收日”。
四月忌讳的日子：初一、初三、初五、初八、十四、十五、二十三、二十八、未日、晦日、弦日、立夏、立夏前一天、小满、以及地支为寅、申、巳、亥、未、酉、辰并干支组合为壬子、丙戌且与出生年柱相冲的“不收日”。
五月忌讳的日子：初一、初三、初五、初六、初七、初九、十四、十五、十六、十七、十九、二十三、二十五、二十六、二十七、二十八、二十九、晦日、弦日、芒种、夏至、夏至前一天、卯日、申日。
六月忌讳的日子：初一、初三、初五、十四、十五、二十三、二十四、二十八、子日、戌日、晦日、弦日、小暑、大暑、伏日（三伏天）、以及地支为子、辰、戌、丑、未并干支组合为壬子、癸亥且与出生年柱相冲的“不收日”。
七月忌讳的日子：初一、初三、初五、初七、初十、十四、十五、二十三、二十八、二十九、晦日、弦日、伏日、立秋、立秋前一天、处暑、酉日、卯日、亥日、以及地支为寅、申、己、亥（注：原文‘己’应为‘巳’之误，但依原文提取）并干支组合为乙卯且与出生年柱相冲的“不收日”。
八月忌讳的日子：初一、初三、初五、初十、十四、十五、二十三、二十七、二十八、晦日、弦日、社日、白露、秋分、秋分前一天、午日、未日、以及地支为子、午、卯、酉并干支组合为辛丑、甲寅且与出生年柱相冲的“不收日”。
九月忌讳的日子：初一、初三、初五、初九、十四、十五、二十三、二十五、二十八、晦日、弦日、寒露、霜降、亥日、寅日、未日、辰日、戌日、丑日、以及地支为未并干支组合为乙卯且与出生年柱相冲的“不收日”。
十月忌讳的日子：初一、初三、初五、初六、初十、十五、二十二、二十三、二十八、晦日、弦日、立冬、立冬前一天、小雪、以及地支为寅、亥、寅、申、己、亥（注：原文重复及‘己’疑为‘巳’）并干支组合为壬申、丙午且与出生年柱相冲的“不收日”。
十一月忌讳的日子：初一、初三、初五、初六、十一、十五、二十三、二十五、二十八、晦日、弦日、大雪、冬至、冬至前一天、酉日、申日、戌日、以及地支为子、午、卯、酉并干支组合为壬辰、丁己（注：原文‘丁己’疑为‘丁亥’或特定干支，依原文提取）且与出生年柱相冲的“不收日”。
十二月忌讳的日子：初一、初三、初五、初八、十五、十六、二十三、二十五、二十八、晦日、弦日、小寒、大寒、辰日、巳日、午日、以及地支为辰、戌、丑、未并干支组合为丁巳、丙午且与出生年柱相冲的“不收日”。
案《道经》记载说：男女交合，最讲究避忌。如果触犯所忌讳的日子或情况，上天会剥夺其寿命，神灵降下灾祸，导致子女相貌丑陋怪异，性格品行不良，身体残疾早夭，这些都有明确的验证。奉劝求子的夫妇，用小纸将日期记录下来，贴在墙壁上，每逢禁忌之日，应当严格遵守。（参考《种子心法》，参看《祈嗣真诠》）
又忌讳“枯焦日”：正月（辰月）、二月（丑月）、三月（戌月）、四月（未月）、五月（卯月）、六月（子月）、七月（酉月）、八月（午月）、九月（寅月）、十月（亥月）、十一月（申月）、十二月（巳月）。
诗云：“九空焦坎日枯焦，嫁娶求男忌此宵。”
说道：“普遍劝告世人知道禁忌并避开，何必担心玉树（喻指优秀的后代）不抽枝发芽。”
又忌讳在非时非地发生性行为的情况。
白天行房（详情不详），在星光月光下，在灯光下（会削减福报和寿命），在狂风雷雨天气中（损害寿命，生出恶劣胎气），在酷暑严寒之时（容易患上重病）。在寺庙之中，井边灶旁，厕所附近，灵柩坟墓旁边（会导致恶人投胎，危害自身性命）。在祖先父母的诞辰或逝世纪念日（减寿一年）。在夫妇各自的生日或本命日（遭受祸患得病）。郁结愤怒（大怒伤肝必定生病），远行归来（行房百里者致病，百里外行房者致死），醉酒后（醉后行房，五脏功能紊乱），空腹时（损伤元神），妻子怀孕前（损伤胎儿导致难产），产后（百日内导致妇女多病），月经来时（男女双方都受损），病后（病情变化无法痊愈）。种种非禁忌情况，招致的祸报最为猛烈。
如果能够谨慎选择居住环境并保持清心寡欲，严格遵守等待合适的时机，还担心得不到子嗣吗？特此告知那些不知道禁忌的人。（参考《保命集》）
[Sexual Intercourse Taboos]
Taboo days in the first lunar month: 1st, 5th, 9th, 13th, 14th, 15th, 23rd, 28th, Hui (the last day of the lunar month), Xian (the 8th and 23rd days of the lunar month), Lichun (Start of Spring), and the day before Lichun.
Taboo days in the second lunar month: 1st, 3rd, 5th, 11th, 14th, 15th, 23rd, 28th, Hui, Xian, She (Festival for worshipping the Earth God), Jingzhe (Awakening of Insects), Chunfen (Spring Equinox), and the day before Chunfen. Also includes days with Earthly Branches Zi (Rat), Chou (Ox), You (Rooster), and "Bu Shou Ri" (Days of Non-Reception, referring to unstable energy fields unsuitable for important activities) where the Heavenly Stem-Earthly Branch combinations are Yiwei (Wood Goat) or Gengshen (Metal Monkey) clashing with the birth year pillar.
Taboo days in the third lunar month: 1st, 3rd, 5th, 9th, 14th, 15th, 23rd, 28th, Chou (Ox) days, Xu (Dog) days, Hui, Xian, Qingming (Pure Brightness), Guyu (Grain Rain), and "Bu Shou Ri" where Earthly Branches Chen (Dragon), Wei (Goat), Shen (Monkey), You (Rooster) clash with the birth year pillar.
Taboo days in the fourth lunar month: 1st, 3rd, 5th, 8th, 14th, 15th, 23rd, 28th, Wei (Goat) days, Hui, Xian, Lixia (Start of Summer), the day before Lixia, Xiaoman (Grain Buds), and "Bu Shou Ri" where Earthly Branches Yin (Tiger), Shen (Monkey), Si (Snake), Wei (Goat), You (Rooster), Chen (Dragon) and Heavenly Stem-Earthly Branch combinations Rensub (Water Rat) or Bingxu (Fire Dog) clash with the birth year pillar.
Taboo days in the fifth lunar month: 1st, 3rd, 5th, 6th, 7th, 9th, 14th, 15th, 16th, 17th, 19th, 23rd, 25th, 26th, 27th, 28th, 29th, Hui, Xian, Mangzhong (Grain in Ear), Xiazhi (Summer Solstice), the day before Xiazhi, Mao (Rabbit) days, and Shen (Monkey) days.
Taboo days in the sixth lunar month: 1st, 3rd, 5th, 14th, 15th, 23rd, 24th, 28th, Zi (Rat) days, Xu (Dog) days, Hui, Xian, Xiaoshu (Minor Heat), Dashu (Major Heat), Fu (Sanfu Days/Three Dog Days), and "Bu Shou Ri" where Earthly Branches Zi (Rat), Chen (Dragon), Xu (Dog), Chou (Ox), Wei (Goat) and Heavenly Stem-Earthly Branch combinations Rensub (Water Rat) or Guihai (Water Pig) clash with the birth year pillar.
Taboo days in the seventh lunar month: 1st, 3rd, 5th, 7th, 10th, 14th, 15th, 23rd, 28th, 29th, Hui, Xian, Fu, Liqiu (Start of Autumn), the day before Liqiu, Chushu (End of Heat), You (Rooster) days, Mao (Rabbit) days, Hai (Pig) days, and "Bu Shou Ri" where Earthly Branches Yin (Tiger), Shen (Monkey), Ji (Earth - *Note: likely a typo for Si/Snake in original*), Hai (Pig) and Heavenly Stem-Earthly Branch combination Yimao (Wood Rabbit) clash with the birth year pillar.
Taboo days in the eighth lunar month: 1st, 3rd, 5th, 10th, 14th, 15th, 23rd, 27th, 28th, Hui, Xian, She, Bailu (White Dew), Qiufen (Autumn Equinox), the day before Qiufen, Wu (Horse) days, Wei (Goat) days, and "Bu Shou Ri" where Earthly Branches Zi (Rat), Wu (Horse), Mao (Rabbit), You (Rooster) and Heavenly Stem-Earthly Branch combinations Xinchou (Metal Ox) or Jiayin (Wood Tiger) clash with the birth year pillar.
Taboo days in the ninth lunar month: 1st, 3rd, 5th, 9th, 14th, 15th, 23rd, 25th, 28th, Hui, Xian, Hanlu (Cold Dew), Shuangjiang (Frost Descent), Hai (Pig) days, Yin (Tiger) days, Wei (Goat) days, Chen (Dragon) days, Xu (Dog) days, Chou (Ox) days, and "Bu Shou Ri" where Earthly Branches Wei (Goat) and Heavenly Stem-Earthly Branch combination Yimao (Wood Rabbit) clash with the birth year pillar.
Taboo days in the tenth lunar month: 1st, 3rd, 5th, 6th, 10th, 15th, 22nd, 23rd, 28th, Hui, Xian, Lidong (Start of Winter), the day before Lidong, Xiaoxue (Minor Snow), and "Bu Shou Ri" where Earthly Branches Yin (Tiger), Hai (Pig), Yin (Tiger), Shen (Monkey), Ji (Earth - *Note: likely a typo for Si/Snake*), Hai (Pig) and Heavenly Stem-Earthly Branch combinations Ren Shen (Water Monkey) or Bingwu (Fire Horse) clash with the birth year pillar.
Taboo days in the eleventh lunar month: 1st, 3rd, 5th, 6th, 11th, 15th, 23rd, 25th, 28th, Hui, Xian, Daxue (Major Snow), Dongzhi (Winter Solstice), the day before Dongzhi, You (Rooster) days, Shen (Monkey) days, Xu (Dog) days, and "Bu Shou Ri" where Earthly Branches Zi (Rat), Wu (Horse), Mao (Rabbit), You (Rooster) and Heavenly Stem-Earthly Branch combinations Renchen (Water Dragon) or Dingji (Fire Earth - *Note: 'Dingji' likely a specific term or typo*) clash with the birth year pillar.
Taboo days in the twelfth lunar month: 1st, 3rd, 5th, 8th, 15th, 16th, 23rd, 25th, 28th, Hui, Xian, Xiaohan (Minor Cold), Dahan (Major Cold), Chen (Dragon) days, Si (Snake) days, Wu (Horse) days, and "Bu Shou Ri" where Earthly Branches Chen (Dragon), Xu (Dog), Chou (Ox), Wei (Goat) and Heavenly Stem-Earthly Branch combinations Dingsi (Fire Snake) or Bingwu (Fire Horse) clash with the birth year pillar.
According to the *Daoist Scriptures*: Sexual intercourse between men and women requires strict avoidance of taboos. If one violates these prohibitions, Heaven will shorten their lifespan, and deities will bring calamity. This may result in children with ugly or strange appearances, bad character and conduct, physical disabilities, or premature death. There is clear evidence for this. It is advised that those seeking offspring record these dates on small pieces of paper and paste them on the wall. On every taboo day, one should strictly observe these rules. (Referencing *Seed Heart Method*, see also *True Guide to Praying for Heirs*).
Also avoid "Ku Jiao Ri" (Withered and Scorched Days): First Month (Chen), Second Month (Chou), Third Month (Xu), Fourth Month (Wei), Fifth Month (Mao), Sixth Month (Zi), Seventh Month (You), Eighth Month (Wu), Ninth Month (Yin), Tenth Month (Hai), Eleventh Month (Shen), Twelfth Month (Si).
Poem says: "Nine Emptinesses, Scorched Kan Day, Withered and Scorched; Marriage and seeking sons forbid this night."
It is said: "Universally advising people to know and avoid taboos, why worry about the jade tree (metaphor for excellent descendants) not sprouting branches?"
Also avoid sexual intercourse at inappropriate times and places.
Intercourse during the day (details unknown), under starlight or moonlight, under lamplight (reduces fortune and lifespan), during fierce winds and thunderstorms (shortens life, produces evil fetus), in extreme heat or cold (leads to serious illness). In temples, near wells and stoves, beside toilets, or near coffins and graves (evil spirits may incarnate, harming life and health). On the birthdays or death anniversaries of ancestors and parents (shortens life by one year). On the birthdays or destiny days of husband and wife (brings disaster and illness). In states of depression or anger (great anger damages the Liver, leading to illness), after long journeys (intercourse after traveling 100 li causes illness; traveling 100 li after intercourse leads to death), while drunk (damages the Five Zang Organs), on an empty stomach (damages Yuan Shen/Essential Spirit), before pregnancy (damages the fetus, causing difficult labor), after childbirth (causes many illnesses in women within 100 days), during menstruation (harms both man and woman), after illness (illness changes and fails to recover). All these violations bring severe retribution.
If one can be cautious in living arrangements, maintain a pure heart and few desires, strictly wait for the right time, why worry about not having heirs? This is warned to those who do not know the taboos. (Referencing *Collection for Preserving Life*)