Zevachim 27B

ומשנתינו כדברי האומר לא יאספנו.

And our Mishnah is in accordance with the statement of the one who says: He may not gather it up.

ורב חסדא אמר אבימי: הכל מודין בניתנין למטה שנתנן למעלה ⁠– שלא יאספנו; וכל שכן בניתנין למעלה שנתנן למטה ⁠– הואיל ודמים העליונים למטה הן באין. לא נחלקו אלא בניתנין לפנים שנתנן בחוץ, בחוץ שנתנן לפנים ⁠– שרבי יוסי אומר: יאספנו, ורבי שמעון אומר: לא יאספנו.

And Rav Ḥisda says that Avimi says: Everyone concedes with regard to the blood that is to be placed below the red line that if one placed it above the red line he may not gather it up again. And all the more so with regard to the blood that is to be placed above the red line that one placed below the red line, since the blood placed above the red line will eventually run down the side of the altar and reach below the red line. They disagree only with regard to the blood that is to be placed inside the Sanctuary that one placed outside on the external altar, or blood that is to be placed outside that one placed inside, as R' Yosei says: He may gather it up, as though it had spilled on the floor, and R' Shimon says: He may not gather it up, because the blood was nevertheless placed on an altar.

אמר רב נחמן בר יצחק: אף אנן נמי תנינא, רבי יהודה אומר: ״זאת היא העולה״⁠ – הרי אלו מיעוטין; פרט לנשחטה בלילה ושנשפך דמה ושיצא דמה חוץ לקלעים ⁠– אם עלתה תרד.

Rav Naḥman bar Yitzḥak says: We learn in a baraita as well that if the blood is misapplied on the altar it may not be gathered, in accordance with the opinion of R' Yoḥanan: R' Yehuda says that the verse states: “This is the law of the burnt offering: It is that which goes up [ha’ola] on the pyre upon the altar” (Leviticus 6:2), from which it is derived that a disqualified offering that ascended upon the altar should not descend from it. These terms, i.e., “this,” “it,” and “that,” are 3 terms of exclusion, which serve to exclude 3 cases of disqualified offerings from this halakha: An offering that was slaughtered at night, one whose blood was spilled, and one whose blood emerged outside the curtains, i.e., the Temple courtyard. In these cases, even if the offering ascended upon the altar it should descend.