Komentarz do Rodzaju 41:13

השיב על כני HE RESTORED UNTO MY OFFICE — he means Pharaoh who was mentioned before, where it is said (v. 10) “Pharaoh was wroth with his servants”. The phrase is elliptical not stating explicitly who restored, for it is not necessary to state explicitly who restored: obviously he who has the power to restore viz, Pharaoh. This is the ease with all elliptical sentences — they leave the matter indefinite as to who has to do the action (i.e. they omit the subject of the verb).

AND IT WAS AS HE INTERPRETED ETC. Me he restored to my post.

אותי השיב על כני, “me he restored to my position,” according to the plain meaning the word השיב refers to Pharaoh as being the one who restored the cupbearer to his former position. Other commentators consider Joseph as the subject of the word השיב, seeing that we have a tradition that the words of the interpreter determine the meaning of the dream, (Berachot 55) i.e. that Joseph’s interpretation set in motion the release of the cupbearer. Accordingly, Joseph had held the fate of both the chief of the bakers and the cupbearer in his hands when he offered his interpretation.