Reference for Zevachim 184:20

א"ל זו שאלה טעון כיבוס ממה נפשך אי אוספו וכשר הא כשר ואי אוספו ופסול אנא כרבי עקיבא ס"ל דאמר היתה לו שעת הכושר ונפסלה דמה טעון כיבוס

a service vessel,<span class="x" onmousemove="('comment',' The bird's throat counting as such.');">²⁷</span> and therefore one collects it and it is fit;<span class="x" onmousemove="('comment',' Just as when the blood of an animal-offering is spilt from the service vessel in which it was received.');">²⁸</span> or perhaps, in its case the Divine Law actually disqualified a service vessel, and therefore one collects it, but it is disqualified?<span class="x" onmousemove="('comment',' For sprinkling, for Scripture insisted that it must be sprinkled direct from the throat.');">²⁹</span> - Said Raba, Come and hear: You might think that the blood of a bird sin-offering necessitates washing; therefore 'this is' is stated. Now, if you think that in its case the Divine Law actually disqualified a service vessel, I can infer this since it was disqualified in the air-space of a vessel!<span class="x" onmousemove="('comment',' As soon as the blood enters the airspace above the garment it is technically received in a vessel (a garment ranks as a utensil or vessel) and is disqualified for sprinkling. Consequently the garment need not be washed, for only blood fit for sprinkling necessitates washing. What need then is there of a text?');">³⁰</span> - Said R'Huna son of Joshua: [The text is necessary] where one presses the garment<span class="x" onmousemove="('comment',' Lit., 'vessel.'');">³¹</span> to its neck.<span class="x" onmousemove="('comment',' So that the blood did not enter the air-space above the garment at all. Even then it need not be washed.');">³²</span> Levi asked Rabbi:<span class="x" onmousemove="('comment',' Emended text (Sh.M.) .');">³³</span> What if it spurted from one garment on to another garment?<span class="x" onmousemove="('comment',' This refers to the blood of an animal sin-offering.');">³⁴</span> [Do we say,] It was rejected from the first garment in respect of washing,<span class="x" onmousemove="('comment',' When it fell on the first garment it became unfit for sprinkling, since it must be washed out, and therefore the second garment does not need washing.');">³⁵</span> or not? - That is indeed a question, he replied. It does need washing, on either alternative: if one can collect [the blood] and it is fit [for sprinkling], then th is fit.<span class="x" onmousemove="('comment',' Now that we know from 'this is' that a limitation is intended, 'shall eat it' teaches that the limitation concerns those which are eaten.');">⁶</span> While if it is collected and disqualified,<span class="x" onmousemove="('comment',' For further sprinkling.');">³⁷</span> I agree with R'Akiba who maintained [that] if it had a period of fitness and was then disqualified, its blood necessitates washing.

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