Ezekiel 23:2 Halakhah

בֶּן־אָדָ֑ם שְׁתַּ֣יִם נָשִׁ֔ים בְּנ֥וֹת אֵם־אַחַ֖ת הָיֽוּ׃

’Son of man, there were two women, the daughters of one mother;