What are the implications of the (otherwise superfluous) word "ve'Im ha'Makdish <i>Yig'al es Beiso"?
Bava Metzi'a, 54b: To preclude Hekdesh Sheini - where for example, the owner transferred the Kedushah on to a second animal 1 - from the Din of adding a fifth.
Temurah, 10a: To preclude the person for whom the animal is serving as an atonement - where Reuven made a Neder to bring a Korban, and Shimon was Makdish his animal on his behalf. 2
"Veyasaf Chamishis Kesef Erk'cha alav". What is the significance of the comparison of the fifth to the principle?
Temurah, 11a: It teaches us that, just as the owner adds a fifth to the principle, so too, must he add a fifth to the fifth. 1
See Torah Temimah, note 71.
Why does the Torah add the (otherwise superfluous) words "Vehayah lo"?