Torah Temimah cites Toras Kohanim (Sifra, Vayikra Dibbura DeChovah, Section 11).
Sefaria — Toras Kohanim (Sifra, Vayikra Dibbura DeChovah, Section 11)
“In the shekel of the sanctuary” — and not in the weights of Bavel, Media, or Cappadocia.
Miyut of the shekel standard — Temple shekel only.
The two-shekel minimum for the asham is measured by the Temple shekel, not local coinages. The Torah’s language “be-shekel ha-kodesh” excludes foreign or provincial weight systems and locks the valuation to the sanctuary standard.