レビ記 18:18
JPS-1917וְאִשָּׁ֥ה אֶל־אֲחֹתָ֖הּ לֹ֣א תִקָּ֑ח לִצְרֹ֗ר לְגַלּ֧וֹת עֶרְוָתָ֛הּ עָלֶ֖יהָ בְּחַיֶּֽיהָ׃
And thou shalt not take a woman to her sister, to be a rival to her, to uncover her nakedness, beside the other in her lifetime.
ラシーの注解
אל אחתה [NEITHER SHALT THOU TAKE A WIFE] TO HER SISTER — both at the same time. לצרר is connected with the word ,צרה — a rival (cf. I Samuel 1:6). Thus the verse signifies “thou shalt not take a wife to her sister", to make (i. e. making) the one the rival of the other. בחייה DURING HER LIFE-TIME — This teaches you that if he divorced her (his wife) he is not allowed to marry her sister so long as she (the former) is still living (Yevamot 8b).
他の翻訳
וְאִשָּׁ֥ה אֶל־אֲחֹתָ֖הּ לֹ֣א תִקָּ֑ח לִצְרֹ֗ר לְגַלּ֧וֹת עֶרְוָתָ֛הּ עָלֶ֖יהָ בְּחַיֶּֽיהָ׃
Neither shalt thou take a wife to her sister, as her rival, and uncover her nakedness, beside the other in her life time.