What is the measure defining the threshold (Nisab) for cutting based on the Dinar?

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The Dinar is equivalent to one Mithqal among the people's measures today, and seven of them equate to ten Dirhams. This measure has remained unchanged since the era of the Messenger of Allah (peace be upon him) and before. Dirhams previously varied, but they were standardized such that ten of them were made equal to seven Mithqals. The cutting penalty is established if three of these Dirhams are stolen, provided they are pure, whether minted or unminted, consistent with the ruling established for gold.