Manusmriti
धरणानि दश ज्ञेयः शतमानस्तु राजतः । चतुःसौवर्णिको निष्को विज्ञेयस्तु प्रमाणतः ॥ १३७ ॥
Know (that) ten dharanas of silver make one satamana; four suvarnas must be considered (equal) in weight to a nishka.
english translation
dharaNAni daza jJeyaH zatamAnastu rAjataH । catuHsauvarNiko niSko vijJeyastu pramANataH ॥ 137 ॥
hk transliteration by Sanscript