כִּֽי־יִשְׁאָלְךָ֥ בִנְךָ֛ מָחָ֖ר לֵאמֹ֑ר מָ֣ה הָעֵדֹ֗ת וְהַֽחֻקִּים֙ וְהַמִּשְׁפָּטִ֔ים אֲשֶׁ֥ר צִוָּ֛ה יְהוָ֥ה אֱלֹהֵ֖ינוּ אֶתְכֶֽם׃
Quand ton fils t’interrogera un jour, disant: "Qu’est-ce que ces statuts, ces lois, ces règlements, que l’Éternel, notre Dieu, vous a imposés?"
Rashi
כי ישאלך בנך מחר WHEN THY SON ASKETH THEE — There is a usage of the word מחר that refers to a day that only comes after the lapse of some time (and this is so here, i.e. it here means “in time to come", not "to-morrow”) (Mekhilta).
Alshekh
We were slaves. Answer him that the exodus from Egypt was a bigger miracle than the conquest of the land of Isarel. For at the time of the exodus we were idolaters, and nevertheless Hashem performed miracles for us. But at the time of the conquest we were righteous. And He took us out. Through taking us out of Egypt He implanted within us the fundamentals of religion, that we saw that He overturned the natural order and defeated the ministering angel of Egypt.
Da'at Zekenim
כי ישאלך בנך מחר, “when your son will ask you tomorrow (in the future), etc.” The question posed here is that attributed to the wise son (one of the four) during the recital of the haggadah on the night of the seder. Although this son addresses his parents with the word אתכם, which is almost the same as לכם, when he describes them as having been commanded to observe this commandment, i.e. he excludes himself just as the wicked son does, the fact that he adds that it is אשר צוה ה' אלוקנו, “which the Lord our G–d commanded, means that he does not exclude himself from the people assembled to observe the Passover. He had, after all not been redeemed from Egypt, seeing that he had not yet been alive, as had his parents.