עַד־כָּ֖ה סוֹפָ֣א דִֽי־מִלְּתָ֑א אֲנָ֨ה דָֽנִיֵּ֜אל שַׂגִּ֣יא ׀ רַעְיוֹנַ֣י יְבַהֲלֻנַּ֗נִי וְזִיוַי֙ יִשְׁתַּנּ֣וֹן עֲלַ֔י וּמִלְּתָ֖א בְּלִבִּ֥י נִטְרֵֽת׃ (פ)
그 말이 이에 그친지라 나 다니엘은 중심이 번민하였으며 내 낯 빛이 변하였으나 내가 이 일을 마음에 감추었느니라
Rabbeinu Bahya
הבא נבא אני ואמך ואחיך, “do you really expect me and your brothers to come and bow down before you?” Seeing that Joseph’s mother was already dead, Yaakov wanted to demonstrate that the other parts of the dream could also not be taken seriously. Nonetheless, Yaakov took the dream far more seriously than he let on and that is why the Torah added: “his father kept careful track of the matter.” He knew that the dream was very significant and awaited its realisation at a future date. According to Bereshit Rabbah 84,12 the Holy Spirit told Yaakov to remember the matter, i.e. as if the Torah had written שמור את הדבר, “remember the matter well!”