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The Midrash (Bereshit Rabba 84:8) says

ר' נחמיה אמר שכל הלכות שמסרו שם ועבר ליעקב מסרן לו

All the laws that Yaakov learned by Shem and Ever, he taught to Yosef (his son).

What exactly did Yaakov learn? And why did he teach it only to Yosef?

marked as duplicate by Double AA Jun 16 '14 at 22:36

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  • See emes lyaakov parshas vayeitzei – Shoel U'Meishiv Jun 16 '14 at 21:54
  • @Nafkamina There is significantly more than one sefer with that name (hebrewbooks.org lists over 10). Which one are you thinking of (who is the author)? – Yishai Jun 16 '14 at 22:09
  • Eglah arufah........ – sam Jun 16 '14 at 22:27
  • From r yaakov kaminetxky – Shoel U'Meishiv Jun 16 '14 at 23:31