कनिष्ठाग्रपरीमाणं सत्वचं निर्व्रणारुजम् । द्वादशांगुलमानं च सार्द्रं स्याद्दंतधावनम्
kaniṣṭhāgraparīmāṇaṃ satvacaṃ nirvraṇārujam | dvādaśāṃgulamānaṃ ca sārdraṃ syāddaṃtadhāvanam
يكون عود تنظيف الأسنان بقدر سُمك طرف الخنصر، مع بقاء القشرة عليه، سالمًا من الجروح والعيوب المؤذية، طوله اثنا عشر إصبعًا، ويكون طريًّا رطبًا غير يابس.
Sūta (deduced, Brāhma Khaṇḍa narration style)
Scene: A close, instructional scene: a devotee selects a fresh twig of correct length and thickness, showing bark intact; a measuring gesture of twelve finger-breadths is emphasized.
Purity is supported by careful choice of means; dharma values non-harmful, disciplined daily conduct.
No holy site is described; the verse gives specifications for a daily practice.
A proper tooth-stick should be little-finger-tip thick, bark-bearing, defect-free, twelve aṅgulas long, and fresh/moist.