Exodus 30:4

צלעתיו Here this word must signify “corners” (not “sides” as Rashi explains in Exodus 25:12), as it is translated in the Targum, since it is stated afterwards, על שני צדיו, “upon the two sides of it”, so that the phrases mean, “the two corners that are on its two sides”. והיה (lit., “and it shall be”, not “they shall be”) — i. e. the making of these rings (this ring-work) shall be (shall serve) — לבתים לבדים FOR PLACES FOR THE STAVES — i.e. the ring shall serve as a place for the stave (cf. Rashi on Exodus 25:27).

And two golden rings shalt thou make for it under its rim, by its two corners upon the two sides of it shalt thou make it; and they shall be for places for the poles with which to bear it.

וּשְׁתֵּי֩ טַבְּעֹ֨ת זָהָ֜ב תַּֽעֲשֶׂה־לּ֣וֹ ׀ מִתַּ֣חַת לְזֵר֗וֹ עַ֚ל שְׁתֵּ֣י צַלְעֹתָ֔יו תַּעֲשֶׂ֖ה עַל־שְׁנֵ֣י צִדָּ֑יו וְהָיָה֙ לְבָתִּ֣ים לְבַדִּ֔ים לָשֵׂ֥את אֹת֖וֹ בָּהֵֽמָּה׃