Ācāra-Nirṇaya: Varṇa-Āśrama Dharma, Śauca, Snāna, Sandhyā, Japa, Tarpaṇa, and Gṛhastha-Dinacaryā
स कुर्यादर्धशौचं तु स्वस्य शौचस्य सर्वदा / दिवा शौचस्य रात्र्यर्धं यद्वा पादो विधीयते
sa kuryādardhaśaucaṃ tu svasya śaucasya sarvadā / divā śaucasya rātryardhaṃ yadvā pādo vidhīyate
അവൻ തന്റെ ശൗചകാലനിയമത്തിൽ എപ്പോഴും അർദ്ധശൗചം തന്നെ ആചരിക്കണം. പകൽ അശൗചം സംഭവിച്ചാൽ രാത്രി അർദ്ധമായി കണക്കാക്കുന്നു; അല്ലെങ്കിൽ ചിലിടങ്ങളിൽ പൂർണ്ണകാലത്തിന്റെ ഒരു പാദം (ചതുർത്ഥാംശം) മാത്രമെന്നും വിധിയുണ്ട്.
Lord Vishnu (in dialogue instructing Garuda/Vinata-putra on dharma and ritual rules)
Concept: Śauca/āśauca observance can be proportionally reduced (half or quarter) depending on circumstance (day/night) and personal condition.
Vedantic Theme: Yukti (reasoned appropriateness) within dharma: rules are applied with contextual discernment.
Application: When a reduced śauca is prescribed for oneself, observe half the standard period; for daytime occurrence, count the night as half; where tradition allows, apply quarter-period (pāda) reduction.
Primary Rasa: shanta
Type: household/āśrama observance of āśauca
Related Themes: Garuda Purana 1.213.33 (proportional measures); Garuda Purana 1.213.35 (afflicted person acts per strength)
This verse emphasizes that śauca is not optional but a regulated dharma-practice, with specific fractional counts (half or quarter) depending on timing, ensuring purity rules are followed correctly.
It gives a technical rule for calculating the duration of śauca connected to impurity events (commonly discussed alongside death-related observances), stating that night may be counted as half, and in some cases only a quarter is prescribed.
When observing traditional family rites, consult the applicable śauca calculation rules (day/night fractions) through a competent priest or dharma guide so the observance is accurate rather than assumed.