וְעָשִׂ֗יתָ שְׁתֵּי֙ טַבְּע֣וֹת זָהָ֔ב וְשַׂמְתָּ֣ אֹתָ֔ם עַל־שְׁנֵ֖י קְצ֣וֹת הַחֹ֑שֶׁן עַל־שְׂפָת֕וֹ אֲשֶׁ֛ר אֶל־עֵ֥בֶר הָאֵפֹ֖ד בָּֽיְתָה׃
And thou shalt make two rings of gold, and thou shalt put them upon the two ends of the breastplate, upon the edge thereof, which is toward the side of the ephod inward.
Targum Jonathan on Exodus
And thou shalt make two golden rings, and fix them upon the two sides of the breastplate, in the border of it which is on the edge of the ephod inwardly.