KāṭhGS, 2, 4.0 dvādaśa caturviṃśatiṃ ṣaṭtriṃśatam aṣṭācatvāriṃśataṃ vā varṣāṇi yo brahmacaryaṃ carati malajñur abalaḥ kṛśaḥ sarvaṃ sa vindate snātvā yat kiṃcin manasecchaty etenaiva dharmeṇa sādhv adhīte //