Reference for Keritot 48:26
אלא אומרים לו המתן עד שתכנס לבית הספק:
Rab Ashi said: Because it has the appearance of a disqualified offering.<span class="x" onmousemove="('comment',' I.e., the unconditional guilt-offering is in fact not regarded as sacred, and this is why in the first clause we read that it shall be buried, just as a profane animal slaughtered in the Temple precincts. The reason why the concluding clause states that it is to be burnt if the blood had already been tossed, is that the offering has then the appearance of a valid sacrifice which had gone through many stages of the ceremony and was then rendered unfit for the altar. It is therefore to be treated like a disqualified sacrifice, which is to be burnt. The translation follows Rashi's version. Some edd. read: 'Rab Ashi said: The former clause which states of the suspensive guilt-offering that the flesh is removed to the place of burning offers no difficulty. because it has the appearance of a disqualified offering'.');"><sup>16</sup></span>