Genesis 48:14
14 kAnd Israel stretched out his right hand and laid it on the head of Ephraim, who was the younger, and his left hand on the head of Manasseh, lcrossing his hands (for Manasseh was the firstborn).
Genesis 48:17
17 When Joseph saw that his father rlaid his right hand on the head of Ephraim, it displeased him, and he took his father’s hand to move it from Ephraim’s head to Manasseh’s head.