You shall live in booths seven days; all citizens in Israel shall live in booths, in order that future generations may know that I made the Israelite people live in booths when I brought them out of the land of Egypt, I the LORD your God.
Leviticus 23:42-43
בַּסֻּכֹּ֥ת תֵּשְׁב֖וּ שִׁבְעַ֣ת יָמִ֑ים כָּל־הָֽאֶזְרָח֙ בְּיִשְׂרָאֵ֔ל יֵשְׁב֖וּ בַּסֻּכֹּֽת׃
לְמַעַן֮ יֵדְע֣וּ דֹרֹֽתֵיכֶם֒ כִּ֣י בַסֻּכֹּ֗ות הוֹשַׁ֨בְתִּי֙ אֶת־בְּנֵ֣י יִשְׂרָאֵ֔ל בְּהוֹצִיאִ֥י אוֹתָ֖ם מֵאֶ֣רֶץ מִצְרָ֑יִם אֲנִ֖י יְהוָ֥ה אֱלֹהֵיכֶֽם׃
Three times a year—on the Feast of Unleavened Bread, on the Feast of Weeks, and on the Feast of Booths—all your males shall appear before the LORD your God in the place that He will choose. They shall not appear before the LORD empty-handed, 17 but each with his own gift, according to the blessing that the LORD your God has bestowed upon you.
Deuteronomy 16:16-17