Midrasch zu Bereschit 50:26

R. Nathan was of the opinion that Joseph’s grave was in the royal tombs, since it is written: And they embalmed him (Gen. 50:26). How, then, did Moses know which one was Joseph’s coffin? He went to the tomb and stood among the coffins and called out: “Joseph, Joseph, the time has come for the Holy One, blessed be He, to redeem his children. The Shekhinah awaits you and Israel, and the clouds of glory await you. If you will make yourself appear good, but if not, we will be free of your vow.” Whereupon Joseph’s coffin began to stir, and Moses took it and departed. This teaches us that just as a man treats others, so they will treat him. Joseph buried his father, as it is said: And Joseph went up to bury his father;and with him went up all the servants … and his brothers (ibid., v. 7). Even though none of his brothers was as famous as he, since he was a ruler in the land, it is written: And he brought up with him both chariots and horses (ibid., v. 9). Therefore, he deserved to be taken from his grave by Moses himself (since he exerted himself in burying Jacob).

And in those days the sons of Esau decided to select a king over them in the land of their ‎possession. And they said to each other: Verily a king shall rule over us, in our land, who will ‎guide us by his counsel, and who will fight our battles with our enemies, and they did so. And ‎all the sons of Esau swore, saying: No one of our brethren shall ever be king over us, but a ‎stranger who is not one of us; for the sons of Esau were greatly embittered, every man against ‎his son, and against his brother, and against his neighbor, on account of the evil which their ‎brethren had done unto them in the war against the sons of Seir, and therefore the sons of ‎Esau swore, that from this day on, no one of their brethren should ever reign over them, but ‎only a stranger, as it is even to this day. And there was a certain man among the people of ‎Augias, king of Danhabah, Bela, the son of Beor, was his name, and he was an exceedingly ‎valiant man, of fine figure and comely appearance, acquainted with all sciences and a man of ‎wisdom and good counsel, and there was not his like among all the people of Augias. - And all ‎the sons of Esau took him, and they anointed him, and they made him king over themselves ‎and they bowed down before him, and they said unto him: May the king live, may the king ‎live. And they spread out a cloth, and every one of them brought unto him nose rings of gold ‎and of silver, and rings and armlets, and they made him very rich in silver and gold, and in onyx ‎and bdellium, and they made for him a royal throne, and they placed a regal crown upon his ‎head, and they built unto him a palace to dwell therein, and he was king over all the sons of ‎Esau. And the people of Augias took their hire for their fighting from the children of Esau, and ‎then they went and returned to their master unto Danhabah at that time. And Bela ruled over ‎the sons of Esau for thirty years. And the sons of Esau dwelt in the land in the place of the ‎children of Seir, whom they exterminated, and they dwelt securely in their land even unto this ‎day. And it came to pass in the thirty-second year of Israel’s going down to Egypt, which was ‎the seventy first year of Joseph’s life, that Pharaoh, king of Egypt, died in the same year, and ‎Migron, his son, reigned instead of him. And Pharaoh commanded Joseph before his death to ‎be a father unto Migron his son, and that Migron should be under Joseph’s hand and advice. ‎And all the people of Egypt listened unto these words, and they agreed that Joseph should ‎rule over them, for all Egypt loved Joseph even as they loved him in former days. And Migron ‎was sitting upon the throne of his father, and he was king instead of his father in those days. ‎And Migron was forty-one years of age when he was made king, and he ruled over Egypt for ‎forty years,