Targum for Exodus 38:1

וַיַּ֛עַשׂ אֶת־מִזְבַּ֥ח הָעֹלָ֖ה עֲצֵ֣י שִׁטִּ֑ים חָמֵשׁ֩ אַמּ֨וֹת אָרְכּ֜וֹ וְחָֽמֵשׁ־אַמּ֤וֹת רָחְבּוֹ֙ רָב֔וּעַ וְשָׁלֹ֥שׁ אַמּ֖וֹת קֹמָתֽוֹ׃

And he made the altar of burnt-offering of acacia-wood: five cubits was the length thereof, and five cubits the breadth thereof, four-square, and three cubits the height thereof.

Targum Jonathan on Exodus