Oholos 1:6 - 1:7

עד שתצא נפשו – as it is written (Numbers 19:13): “Whoever touches a corpse, the body of a person who has died, [and he does not purify himself, defiles the LORD’s Tabernacle; that person shall be cut off from Israel. Since the water of lustration was not dashed on him, he remains impure; his impurity is still upon him],” that Scripture comes to teach that a person does not defile until he dies.

מגוייד (he who had his arteries opened, bled to death) – cut piecemeal, the language of (Daniel 4:11): “Hew down the tree.”

זוקק ליבום – all the while that he is rapidly passing away/lying on his deathbed, his sister-in-law (i.e., widow of his brother who died without issue) is forbidden to get married

ופוטר מן היבום – if he (i.e., the brother-in-law) died, and he left a son who is rapidly passing away. His wife is exempt from Halitzah/the ceremony that frees the widow of a man who died without children from the obligation to marry one of her deceased husband’s brothers and allows her to remarry [through the removal of a special sandal from the foot of one of her deceased husband’s brothers].

ומאכיל תרומה – if the mother of his mother is an Israelite who was married to a Kohen (see also Mishnah Tractate Yevamot, Chapter 9, Mishnah 5).

ופוסל – he invalidates his mother from [partaking of] the heave-offering/priest’s due if she is the daughter of a Kohen married to an Israelite.

וכן בהמה וחיה אין מטמאין- the ritual impurity imparted by an unslaughtered carcass, until their souls depart

כזנב הלטאה (like the tail of a species of lizard) – meaning to say, what is this spasmatic movement (jerking motion) similar to? To the tail of a species of lizard.

האיברים – there must be upon them flesh and sinews and bones and through this it is considered a limb. And we are speaking of whether the limb was detached from the living or whether a limb from the dead.