प्रतिपद्दर्शषष्ठीषु नवम्यां रविवासरे । दंतानां काष्ठसंयोगो दहेदासप्तमं कुलम्
pratipaddarśaṣaṣṭhīṣu navamyāṃ ravivāsare | daṃtānāṃ kāṣṭhasaṃyogo dahedāsaptamaṃ kulam
On the first tithi, on the day of amāvasyā (new moon), on the sixth, on the ninth, and on Sundays, the use of a wooden twig for cleaning the teeth is said to burn and ruin the family line up to the seventh generation.
Skanda
Tirtha: Kāśī-kṣetra (contextual)
Type: kshetra
Scene: A calendar-marked dawn in Kāśī: a priest instructs pilgrims not to use a tooth-cleaning twig on specific tithis and Sunday, emphasizing lineage protection; pilgrims hold alternative cleansing vessels.
Time (tithi and weekday) is sacred in Purāṇic dharma; aligning conduct with calendrical sanctity protects merit.
Though the rule is general, it is transmitted within Kāśī Khaṇḍa’s dharma-regimen for sacred living in Kāśī.
Avoid using a wooden tooth-stick on Pratipad, Amāvāsyā (Darśa), Ṣaṣṭhī, Navamī, and Sundays.