Talmud sur Les Nombres 13:16

Rebbi Huna in the name of Rebbi Aḥa: The י which the Holy One, praise to Him, lifted from our mother Sarah was given half to Sarah and half to Abraham¹⁹⁹In the Alexandrian system, the numerical value of י is 10, that of ה is 5. Therefore, the gematria of the two former names אברם שרי of Abraham and Sarah is identical to that of the new names אברהם שרה.. Rebbi Hoshaiah stated: The י ascended, bowed down before the Holy One, praise to Him, and said to Him: Master of the Universes, you uprooted me from this just woman²⁰⁰By changing שָׂרַי into שָׂרָה.! The Holy One, praise to Him, said to him: leave. In the past you were the last letter of a woman’s name. By your life, I shall make you the first letter of a man’s name. That is what is written: Moses called Hoshea bin Nun Yehoshua²⁰¹Num. 13:16..