שָׁל֣וֹשׁ פְּעָמִ֣ים ׀ בַּשָּׁנָ֡ה יֵרָאֶ֨ה כָל־זְכוּרְךָ֜ אֶת־פְּנֵ֣י ׀ יְהוָ֣ה אֱלֹהֶ֗יךָ בַּמָּקוֹם֙ אֲשֶׁ֣ר יִבְחָ֔ר בְּחַ֧ג הַמַּצּ֛וֹת וּבְחַ֥ג הַשָּׁבֻע֖וֹת וּבְחַ֣ג הַסֻּכּ֑וֹת וְלֹ֧א יֵרָאֶ֛ה אֶת־פְּנֵ֥י יְהוָ֖ה רֵיקָֽם׃
你所有的男丁一年三次要在永恆者你的上帝所選擇的地方朝見祂，就是在無酵節、七七節和住棚節；他們不可空手朝見永恆者。
Mishnah Chagigah
All are obligated to appear [at the Temple], except a deaf person, an imbecile and a minor, a person of unknown sex [tumtum], a hermaphrodite, women, unfreed slaves, a lame person, a blind person, a sick person, an aged person, and one who is unable to go up on foot. Who is a minor? Whoever is unable to ride on his father’s shoulders and go up from Jerusalem to the Temple Mount, the words of Bet Shammai. But Bet Hillel say: whoever is unable to hold his father’s hand and go up from Jerusalem to the Temple Mount, as it is said: “Three regalim” (Exodus 23:14).
Mishnah Rosh Hashanah
There are four new years: The first of Nisan is the new year for kings and for festivals. The first of Elul is the new year for the tithe of beasts. Rabbi Elazar and Rabbi Shimon say: the first of Tishri. The first of Tishri is the new year for years, for shmitta and jubilee years, for planting and for [tithe of] vegetables. The first of Shevat is the new year for trees, according to the words of Bet Shammai. Bet Hillel says: on the fifteenth of that month.
Mishnah Chagigah
He who did not bring his hagigah on the first day of the festival of Sukkot, may bring it during the whole of the festival, even on the last festival day of Sukkot. If the festival, passed and he did not bring the festival offering, he is no longer liable for it. Of such a person it is said: “A twisted thing cannot be made straight, a lack cannot be made good” (Ecclesiastes 1:15).