Zevachim Daf 25 זבחים דַף 25

The next Mishnah states: נשפך הדם על הרצפה – if the blood spilled from the animal’s neck onto the floor, ואספו – and [the Kohen] gathered it up, it is invalid for avodah, because it must be received in a כלי שרת. The passuk says that the Kohen must take "מדם הפר" – from the blood of the bull, and a Baraisa darshens he must take מדם הנפש – from the lifeblood, not blood from the skin, nor “remnant blood.” It also darshens: דם מהפר יקבלנו – blood, from the bull he shall receive it (i.e., directly from the animal’s neck into the כלי שרת). It cannot be interpreted to mean מקצת דם – part of the blood, because Rav said: השוחט צריך שיקבל את כל דמו של פר – one who shechts [a korban] must receive all of the bull’s blood. Shmuel said that one who shechts a korban must raise the knife upwards so blood will not drip from it into the מזרק (receiving bowl), because the passuk says ולקח מדם הפר – he shall take from the blood of the bull, implying ולא מדם הפר ודבר אחר – but not from the blood of the bull and something else (e.g., the knife). Abaye says the knife should be wiped on the rim of the מזרק.

Rav Yirmiyah bar Abba said that one who shechts must place the ורידין (main blood vessels of the neck) directly over the כלי, so the blood will be received directly from the ורידין. Rebbe Assi asked Rebbe Yochanan, if someone was being מקבל blood, and the bottom of the מזרק fell out before the blood entered its airspace, is the קבלה valid? אויר שאין סופו לנוח כמונח דמי – Is something in the airspace above a place in which it is not destined to rest considered already at rest, so this קבלה would be valid (although the מזרק’s bottom was destined to fall out)? The Gemara below clarifies that Rebbe Assi was also asking about אויר שסופו לנוח – something in the airspace above a place in which it is destined to rest. To this second question, Rebbe Yochanan presented a Baraisa about gathering water for using with פרה אדומה ashes, which must be obtained as מים חיים – “living” spring water. It states that if the mouth of a jug was joined to a jet of מים חיים (not for the purpose of מי חטאת), all the water in the כלי’s airspace is invalid, because it is already considered at rest in the כלי.

Rebbe Zeira quotes: הצורם אזן הפר – if one nicks a bull’s ear after shechitah, and afterwards received its blood, it is invalid, because the passuk says: ולקח מדם הפר – and he shall take the blood of the bull, implying פר שהיה כבר – it must be taken from the bull which was previously, i.e., the same bull, without a new מום. Rava says that a Baraisa darshens this law for קדשים קלים as well: "שה תמים זכר בן שנה" – a male unblemished lamb, within the first year, teaches: שיהא תמים ובן שנה בשעת שחיטה – that it must be unblemished and within the first year at the time of slaughter. It then darshens "יהיה" – it shall be to teach: כל הוייותי' לא יהיו אלא תם ובן שנה – all of its “beings,” i.e., all עבודות, must be while it is unblemished and within the first year. Abaye challenged this assertion from another Baraisa, which states that as long as a mere כזית of a korban remains, one may perform זריקה, proving it does not need to be unblemished!? Therefore, Abaye argues, the first Baraisa must refer only to the requirement that the korban be within its first year (because, as the Gemara explains, age of korbanos is determined by the hour of its birth).