Midrash on II Chronicles 14:2: Bereshit Rabbah & Classical Sources

וַיָּ֛סַר אֶת־מִזְבְּח֥וֹת הַנֵּכָ֖ר וְהַבָּמ֑וֹת וַיְשַׁבֵּר֙ אֶת־הַמַּצֵּב֔וֹת וַיְגַדַּ֖ע אֶת־הָאֲשֵׁרִֽים׃

for he took away the strange altars, and the high places, and broke down the pillars, and hewed down the Asherim;