Halakha Yehezkiel 43:13: Mishneh Torah, The Chosen Temple

וְאֵ֨לֶּה מִדּ֤וֹת הַמִּזְבֵּ֙חַ֙ בָּֽאַמּ֔וֹת אַמָּ֥ה אַמָּ֖ה וָטֹ֑פַח וְחֵ֨יק הָאַמָּ֜ה וְאַמָּה־רֹ֗חַב וּגְבוּלָ֨הּ אֶל־שְׂפָתָ֤הּ סָבִיב֙ זֶ֣רֶת הָאֶחָ֔ד וְזֶ֖ה גַּ֥ב הַמִּזְבֵּֽחַ׃

Inilah ukuran-ukuran mezbah itu dalam hasta, yaitu hasta yang panjangnya satu hasta biasa ditambah satu telapak tangan: alasnya satu hasta tingginya dan satu hasta lebarnya, dan bingkainya di sepanjang tepinya di sekeliling-kelilingnya satu jengkal. Inilah bagian atas mezbah itu.

Mishneh Torah, The Chosen Temple

The measurements of the Altar are very exact and its shape is known [by tradition] from man to man. The altar that those who ascended from the [Babylonian] exile built was made like the one which will be built in the future. It is forbidden to add or subtract from its dimensions.
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Mishneh Torah, The Chosen Temple

The Altar that Moses made, that Solomon made, that the returnees of the [First] Exile made, and that will be made in the future are all 10 cubits high, and that which is stated in the Torah: "and three cubits its height, that is the place of the pyre alone (above the ledge of the Altar). And the dimensions of the Altar that the returnees of the Exile made and the one that will be built in the future are 32 cubits by 32 cubits.
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