וּמִן־הַדָּ֞ם יִתֵּ֣ן ׀ עַל־קַרְנֹ֣ת הַמִּזְבֵּ֗חַ אֲשֶׁר֙ לִפְנֵ֣י יְהוָ֔ה אֲשֶׁ֖ר בְּאֹ֣הֶל מוֹעֵ֑ד וְאֵ֣ת כָּל־הַדָּ֗ם יִשְׁפֹּךְ֙ אֶל־יְסוֹד֙ מִזְבַּ֣ח הָעֹלָ֔ה אֲשֶׁר־פֶּ֖תַח אֹ֥הֶל מוֹעֵֽד׃
appliquera de ce sang sur les cornes de l’autel qui est devant le Seigneur, dans la Tente d’assignation; et le reste du sang, il le répandra dans le réceptacle de l’autel aux holocaustes, qui est à l’entrée de la Tente d’assignation.
Mishneh Torah, The Chosen Temple
The four corner-pieces of the altar, its base, and its squareness are all essential and any altar that does not have corner-pieces, a base, a ramp, and squareness is invalid for they are all essential, however its length, width, and height are not essential as long as it is not less than one cubit [wide] by once cubit [long] by three cubits [high] like the pyre-space of the Altar in the desert.