Quoting Commentary for I Kings 8:66

in the morning you may return The Dissenters have said that one may return home to one’s land on the holiday. But we must not rely on our own understanding when deriving the Commandments — rather, we must rely on the Exegetes of the Torah. Indeed, although we do find “on the eighth day he dismissed the people” [I Kings 8: 66] — which was clearly a holiday — we see written elsewhere “on the twenty-third day of the seventh month he dismissed the people” [II Chronicles 7: 10]. Some say that the word “to their tents” in the former verse denotes their temporary tents, and that they did not return to their land until the workday.

And in Midrash Tanchuma (Leviticus 10:7), Rabbi Yitzchak said: The wicked have no goodness in this world, as it is said, And there will be no good for the wicked (Ecclesiastes 8:13). They challenged this: But it is written when the king’s heart was good [ketov] with wine! He replied to them: It does not say “good” [tov] but rather like good [ketov] — appearing good but not truly good. However, regarding Israel it is written (1 Kings 8:66), And they went to their tents joyful and good of heart for all the goodness. This aligns with our point that the wicked, despite all the great goodness they receive, it appears to them as good but is not truly good, as if they are still lacking. But regarding the righteous it is written for all the goodness, because they always feel that they have everything. Therefore Jacob said because God has been gracious to me and because I have everything. Some say that here Esau acknowledged Jacob’s blessings saying I have plenty [rav] — meaning “I acknowledge that you are my master [rav] and I am the servant, and if so, what can you give me? For whatever a servant acquires belongs to his master.”

And on the twenty-third day of the seventh month, he dismissed the people which was the ninth [day] of the inauguration of the Temple, but in I Kings (8:66) it is written: “On the eighth day,” which was the twenty-second of the month. The meaning is: On the eighth day he gave them permission to leave after the Feast, and on the morrow, when the Feast was over, they all went [home] together. Another meaning: On the eighth day he gave them permission and dismissed those who lived within the Sabbath limits and whoever wished to travel and go on that day in that limit, and on the following day, he dismissed the entire populace. In Genesis Rabbah (35:3) it is explained that they took his leave but waited there one more day and then they repeated [this procedure] and took leave again a second time; therefore it is said: “on the twenty-third day of the month.”