Midrasch zu Bereschit 48:20

... [What about all] the praise of Joseph, who exceeded in the honor of his father? And yet he did not enter into him all the time, such that were it not that they came to tell him, "Your father is sick," he would not have known! Rather this is to inform you of his righteousness. For he did not want to be alone with his father, lest he say to him, "How did your brothers act with you?" And [then] he would curse them.... Hence he did not go to his father all the time.)

"On the eighth day, the chieftain of the Children of Menashe" (Numbers 7:54). Teach us, our rabbi, what is [the status of] a light of Chanukah from the first day that has oil remain in it. Can [it] be lit on the second [day]? So did our rabbis teach: [Regarding] a light of Chanukah from the first day that has oil remain in it, one should add [at least] a tiny amount to it and light it on the second day. And if there was [oil] left over on the second day, he adds upon it on the third day and lights. And so on with all of the days. But if there was [oil] left over on the eighth day, he makes it into a bonfire by itself. Why? Since it was put aside for the commandment, it is forbidden to use it [for another purpose]. A person should not say, "I will not fulfill the commandments of the elders (rabbis), since they are not from the Torah." The Holy One, blessed be He, said to them, "My children, you are not allowed to say this. Rather, observe anything that they decree upon you, as it is stated (Deuteronomy 17:10-11), 'And you shall do according to [...] the law that they shall instruct you.'" Why? Because I also agree with their words, as it is stated (Job 22:28), "You will decree and it will be fulfilled for you." You should know, as behold what is written [about] Yaakov at the time that he blessed Menashe and Ephraim? "And he placed Ephraim before Menashe" (Genesis 48:20). He made the younger [go] before the older; and the Holy One, blessed be He, fulfilled his decree. When? During the sacrifices of the chieftains, such that the tribe of Ephraim sacrificed first, as it is stated (Numbers 7:48), "On the seventh day, the chieftain of the Children of Ephraim," and [only] afterwards [was the sacrifice of] Menashe. From where [do we know this]? From that what they read about the matter, "On the eighth day, the chieftain of the Children of Menashe" (Numbers 7:54).