בַּיָּמִ֣ים הָהֵ֔ם לֹא־יֹאמְר֣וּ ע֔וֹד אָב֖וֹת אָ֣כְלוּ בֹ֑סֶר וְשִׁנֵּ֥י בָנִ֖ים תִּקְהֶֽינָה׃
In those days they shall say no more: ‘The fathers have eaten sour grapes, And the children’s teeth are set on edge.’
Read halakhic rulings (Jewish law) on Jeremiah 31:29: and classical halakhic sources.