בְּכָל דּוֹר וָדוֹר חַיָּב אָדָם לִרְאוֹת אֶת עַצְמוֹ כְּאִלּוּ הוּא יָצָא מִמִּצְרַיִם, שֶׁנֶּאֱמַר: וְהִגַּדְתָּ לְבִנְךָ בַּיּוֹם הַהוּא לֵאמֹר, בַּעֲבוּר זֶה עָשָׂה ה' לִי בְּצֵאתִי מִמִּצְרַיִם. לֹא אֶת אֲבוֹתֵינוּ בִּלְבָד גָּאַל הַקָּדוֹשׁ בָּרוּךְ הוּא, אֶלָּא אַף אוֹתָנוּ גָּאַל עִמָּהֶם, שֶׁנֶּאֱמַר: וְאוֹתָנוּ הוֹצִיא מִשָּׁם, לְמַעַן הָבִיא אוֹתָנוּ, לָתֶת לָנוּ אֶת הָאָרֶץ אֲשֶׁר נִשָׁבַּע לַאֲבֹתֵינוּ.

In each and every generation, a person is obligated to see himself as if he left Egypt, as it is stated (Exodus 13:8); "And you shall tell to your son on that day: For the sake of this, did Hashem do [this] for me, in my going out of Egypt." Not only our ancestors did the Holy One, blessed be He, redeem, but rather also us [together] with them did He redeem, as it is stated (Deuteronomy 6:23); "And He took us out from there, in order to bring us in, to give us the land which He swore unto our fathers."