Rashi on Ezekiel
Woe to those who sew cushions Heb. לִמְתַפְּרוֹת, coseres(es) in Old French, needle-women; coudre, to sew. They would sew something like small cushions and hang them on the armpits of those consulting them, and they would divine with those cushions with a false divination; and to those whom they wished, they would tell a favorable divination, and to whom they wished, they would tell an unfavorable divination.
Rashi on Ezekiel
armpits Heb. אַצִילֵי יָדַי, like אַצִילֵי יָדַיִם, as in (Hosea 12:12): “the furrows of the fields (שָׂדָי).”