בְּע֣וֹד ׀ שְׁלֹ֣שֶׁת יָמִ֗ים יִשָּׂ֤א פַרְעֹה֙ אֶת־רֹאשֶׁ֔ךָ וַהֲשִֽׁיבְךָ֖ עַל־כַּנֶּ֑ךָ וְנָתַתָּ֤ כוֹס־פַּרְעֹה֙ בְּיָד֔וֹ כַּמִּשְׁפָּט֙ הָֽרִאשׁ֔וֹן אֲשֶׁ֥ר הָיִ֖יתָ מַשְׁקֵֽהוּ׃
еще через три дня фараон поднимет голову твою и вернет тебе к чину твоему; и дашь фараону'Чашка в его руку, по прежней манере, когда ты был его дворецким.
Rashi
ישא פרעה את ראשך PHARAOH SHALL LIFT UP THY HEAD — The words נשא ראש denote to count (cf. Exodus 30:12). When he musters his other servants to wait upon him during the meal he will count you also among them.
Chizkuni
בעוד שלשת ימים, “within another three days;” the reason why Joseph felt that the events foreshadowed were to occur so soon, was that in the cupbearer’s dream the development of the budding grapes to becoming wine were described as being so rapid. He therefore also took his cue from the cupbearer’s dream to interpret the solution to the baker’s dream to become evident within three days.
Rashbam
ישא פרעה את ראשך, the use of the word ישא here is similar to the use of the same word in Numbers 1,2 שאו את ראש כל עדת ישראל, “count the whole community of Israel, etc.” After three days Pharaoh will again number you among his servants.