יְהִֽי־מְקוֹרְךָ֥ בָר֑וּךְ וּ֝שְׂמַ֗ח מֵאֵ֥שֶׁת נְעוּרֶֽךָ׃
Да будет благословен источник твой; И радуйся, жена твоей юности.
Rashi
Your fountain shall be blessed, and you shall rejoice with the wife of your youth That is the Torah which you learned in your youth.