क्रेता शुल्कं राजपण्यच्छेदानुरूपं च वैधरणं दद्यात् अन्यत्र क्रेता षट्छतमत्ययं च ॥ कZ_०२.१२.३१ ॥
kretā śulkaṃ rāja-paṇya-ccheda-anurūpaṃ ca vaidharaṇaṃ dadyāt anyatra kretā ṣaṭ-chatam atyayaṃ ca
The buyer shall pay the duty (śulka) and a ‘vaidharaṇa’ charge in accordance with the official classification/standard of the king’s commodities; otherwise, the buyer shall also incur a penalty of six hundred (paṇas).
It reduces enforcement burden by placing compliance incentives on the demand side, discouraging black-market purchasing.