Parsha: Vaychi, Vayeishev, "When did Yosef become the B'chor?"

Questions:
When did Yaakov choose Yosef to be the Bechor?
Is it in Vaychi 48:5 when Yaakov said "KiR'uven v'Shimon yihyeh lee"?

Sources:

• Vaychi 48:5
• Vaychi 48:22
• Torah T'mimah there 17
• Quoting TB Bava Batra 123a
• Vayeishev 37:3: "K'tonet Passim"

Vaychi 48:22 "shchem echad al achecha"?
Note: Both implying pee sh'nayim...
OR
Vayeishev - when Yaakov gave Yosef the K'tonet Passim; which implied that Yosef now held the mantle of "B'chor"?

BE"H we will cover Vaychi next and reflect back to Vayeishev and Vayishlach later.
Note: Stay tuned for "surprise twist ending"
Hypothesis. :-)


Shalom,

RRW