Shiva Purana

siva.sh/siva-purana/rudra-samhita/11/27

षष्ट्याद्यामाश्च नवमी व्रतमस्तं रवेर्दिनम्॥ तथा श्राद्धदिनं तात निषिद्धं रदधावने ॥ २७ ॥

sanskrit

On Ṣaṣṭī (sixth), Navamī (ninth) and new-moon days, on sundays and days of sacred rites and Śrāddhas, cleaning the teeth with tooth-brush twig is prohibited.

english translation

SaSTyAdyAmAzca navamI vratamastaM raverdinam॥ tathA zrAddhadinaM tAta niSiddhaM radadhAvane ॥ 27 ॥

hk transliteration by Sanscript

siva.sh/siva-purana/rudra-samhita/11/27

षष्ट्याद्यामाश्च नवमी व्रतमस्तं रवेर्दिनम्॥ तथा श्राद्धदिनं तात निषिद्धं रदधावने ॥ २७ ॥

sanskrit

On Ṣaṣṭī (sixth), Navamī (ninth) and new-moon days, on sundays and days of sacred rites and Śrāddhas, cleaning the teeth with tooth-brush twig is prohibited.

english translation

SaSTyAdyAmAzca navamI vratamastaM raverdinam॥ tathA zrAddhadinaM tAta niSiddhaM radadhAvane ॥ 27 ॥

hk transliteration by Sanscript