Reference for Bekhorot 101:28

ופדויו מבן חדש כלל בערכך כסף חמשת שקלים פרט פדה תפדה חזר וכלל

THEREFORE,<span class="x" onmousemove="('comment',' Since he has to give the priest a further five sela's. Another explanation is: Since the Torah ruled (v. infra) that one cannot redeem with notes of indebtedness, therefore the priest cannot remit his debt, and there is no other remedy except making the bond a gift to the father.');">²²</span>

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