בְּעַד֩ הַחַלּ֨וֹן נִשְׁקְפָ֧ה וַתְּיַבֵּ֛ב אֵ֥ם סִֽיסְרָ֖א בְּעַ֣ד הָֽאֶשְׁנָ֑ב מַדּ֗וּעַ בֹּשֵׁ֤שׁ רִכְבּוֹ֙ לָב֔וֹא מַדּ֣וּעַ אֶֽחֱר֔וּ פַּעֲמֵ֖י מַרְכְּבוֹתָֽיו׃
시스라의 어미가 창문으로 바라보며 살창에서 부르짖기를 그의 병거가 어찌하여 더디 오는고 그의 병거 바퀴가 어찌하여 더디 구는고 하매
Zohar
Assuredly Abimelech was wise and looked at the wisdom of the stars, that is called a 'window', as it is written here, "out at a window" (Beresheet 26:8), and elsewhere, "The mother of Sisra looked out at a window" (Shoftim 5:28). As there (refers to) astrology, so here to astrology. And he saw there that it was not as Isaac said, but that he surely was sporting with her, and she was his wife. Then, "Abimelech called Isaac" (Beresheet 26:9) Rabbi Yosi said that it would have befitted Abimelech to do this to Isaac, as he did to Abraham, were it not for the Holy One, blessed be He, who reproved him earlier.