Targum zu Bereschit 49:26

The blessings of thy father be added to the blessings wherewith my fathers Abraham and Izhak have blessed me, and which the princes of the world Ishmael and Esau and all the sons of Keturah have desired: let all these blessings be united, and form a diadem of majesty for the head of Joseph, and for the brow of the man who became chief and ruler in Mizraim, and the brightness of the glory of his brethren.

The blessing of thy father be added upon thee, upon the blessings wherewith thy fathers Abraham and Izhak who are like mountains blessed thee, and upon the blessing of the four mothers' Sarah, Rivekah, Rahel, and Leah, who are like hills; let all these blessings come, and make a diadem of majesty upon the head of Joseph, and upon the crown of the man who became a chief and ruler in the land of Mizraim, and the brightness of the glory of his brethren.