Rebbe Baruch of Medzhebuz's Kol Chamira

Any chometz in my possession which I did or did not see, which I did or did not destroy, shall be nullified and become ownerless as the dust of the earth. - declaration made after burning the chometz

"Any chometz" - all selfish tendencies

"in my possession" - surely, they exist within my soul

"which I did or did not see" - I think I have seen them, but, in truth, I have not seen them

"which I did or did not destroy" - I think I have destroyed them, but in truth I have not destroyed them.

"shall be nullified and become ownerless as the dust of the earth." - May You, Hashem, nullify them and destroy them.