Gemara:

Kiddushin 

Parsha:

Vayechi,  Vayeira,  Vayeitzei 

Collections: R' Grunstein Our Forefathers Fulfilled the ENTIRE Torah

References: Kiddushin: 36B  

Description

Our Forefather only fulfilled the Torah IN ISRAEL, but not when living outside of it. Thus, Yaakov can marry two sisters in Charan. And yet, this goes against the normative notion that Mitzvot [NOT dependent on the land] are applicable outside of Israel, not to mention the fact that Avraham served his guests meat and milk while IN ISRAEL