וּשְׁאַבְתֶּם־מַ֖יִם בְּשָׂשׂ֑וֹן מִמַּעַיְנֵ֖י הַיְשׁוּעָֽה׃
און איר װעט שעפּן װאַסער מיט שִׂמחה, פֿון די קװאַלן פֿון ישועה.
Mishneh Torah, Shofar, Sukkah and Lulav
Although it is a Mitzvah to rejoice on all festivals, on the Sukkot holiday there was a time of overabundant joy in the Holy Temple, for it is written, "...you shall rejoice before the LORD your God for seven days." And how was this done? On the eve of the first holiday they would arrange in the Holy Temple a place for the women above and for the men below so that they might not mix one with the other. And they began to rejoice from the night after the first holiday, and continued on each and every day of the intercessory days of the holiday. They began after the Tamid offering was made in the evening to rejoice unto the rest of the day and through the night.