And it is established based on our previous discussion, that indeed intent is sufficient for nullification in one's heart, and in this way one fulfills the essential requirement of nullification. However, the Sages instituted that one should express the nullification verbally by saying the formula 'Kol Chamira' (all leaven), and it is appropriate to appoint the delegate who is checking to recite the nullification formula. Perhaps that is why the term 'hefker' (ownerless) was added, to strengthen the resolve that there is no need for this leaven and it is as insignificant as dust in his eyes.

This also clarifies the criticism of Maimonides' words in the Laws of Blessings, that the delegate recites a blessing for the removal of leaven whether he is checking for himself or for others. How can he recite a blessing when checking for others, since the homeowner who sent him has already made up his mind through the act of appointing the delegate to nullify the leaven, and how can the delegate recite a blessing for the nullification already performed by the homeowner. Based on our discussion it is reasonable to say that a blessing was not instituted for the removal of leaven for matters that are in the heart, even though they are dependent on the actual and essential nullification, but rather it is based on the rabbinic decree to express the nullification verbally with the formula 'Kol Chamira', and therefore the delegate who recites this formula also blesses for the removal of leaven.