अशक्तस्तु त्रयोदश्यां नक्तं कुर्याज्जितेन्द्रियः । अयाचितं चतुर्दश्यां ह्युपवासेन पूर्णिमाम्
aśaktastu trayodaśyāṃ naktaṃ kuryājjitendriyaḥ | ayācitaṃ caturdaśyāṃ hyupavāsena pūrṇimām
Kann man am dreizehnten Tag nicht vollständig fasten, so mag man, die Sinne bezwingend, nakta üben (nur nachts essen). Am vierzehnten nehme man nur ungebetene Speise (ayācita), und am Vollmondtag halte man Fasten.
Śiva
Tirtha: Prabhāsa-kṣetra
Type: kshetra
Listener: Implied same addressed woman; general instruction to devotees
Scene: A self-controlled pilgrim in Prabhāsa: trayodaśī night-meal in simplicity, caturdaśī receiving unsolicited alms, culminating in pūrṇimā fast before the temple/sea.
Purāṇic dharma includes compassionate gradations—when full austerity is not possible, controlled alternatives preserve the vow’s spirit.
The observance is situated in the Prabhāsa-kṣetra teaching cycle of the Skanda Purāṇa.
If unable to fast fully: trayodaśī—nakta; caturdaśī—ayācita; pūrṇimā—upavāsa.