Genesis 50:2-6

Joseph commanded his servants the physicians to embalm his father. So the physicians embalmed Israel.

Now forty days were required for it, for such is the period required for embalming. And the Egyptians wept for him seventy days.

When the days of mourning for him were past, Joseph spoke to the household of Pharaoh, saying, “If now I have found favor in your sight, please speak to Pharaoh, saying,

‘My father made me swear, saying, “Behold, I am about to die; in my grave which I dug for myself in the land of Canaan, there you shall bury me.” Now then, please let me go up and bury my father; then I will return.’ ”

Pharaoh said, “Go up and bury your father, as he made you swear.”