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1. A lost object must be returned to one who identifies it with a Siman, but not to one who simply claims that he recognizes it as his.
2. A blind person is permitted to be his wife based on his recognition of her voice.
3. If two witnesses testify that they do not recognize the murderer, but they can identify him with a Siman, their testimony is not accepted.
4. The Tana Kama maintains that the entire Gid ha'Nasheh must be removed from the animal.
5. According to Rebbi Yehudah, only the surface of the Gid ha'Nasheh must be removed.
6. Shmuel maintains that the Torah prohibits only the portion of the Gid ha'Nasheh that is on the "spoon" of the thigh.
7. If the entire Gid ha'Nasheh is less than the size of an olive, one is Chayav Malkus for eating it, according to the Rabanan. Rebbi Yehudah disagrees.
8. If the Gid ha'Nasheh is the size of four or five olives, one is Chayav Malkus for eating a portion of it that is at least the size of an olive.
9. The Gid ha'Nasheh of a bird is permitted.
10. If the Gid ha'Nasheh that was cooked together with the thigh of the animal gives taste to the thigh, the mixture is prohibited.
11. If a goat is roasted with its Chelev, the entire goat is forbidden, even the ear.
A BIT MORE
1. We do not believe someone who claims that he recognizes the lost object, with the exception of a Talmid Chacham, who is believed.
2. For the same reason, all men are permitted to their wives at night, as recognition is a better Siman than an identifying mark.
3. However, if they say that they recognize him, their testimony is accepted because recognition is a better Siman than an identifying mark.
4. The Tana Kama agrees with Rebbi Meir that the fat of the Gid ha'Nasheh must be cut out with its roots.
5. Rebbi Meir agrees with Rebbi Yehudah that Min ha'Torah only the surface of the Gid ha'Nasheh is forbidden. However, he says that mid'Rabanan even the portion below the surface must be removed.
6. Rav Papa maintains that Shmuel agrees with the opinion of the Rabanan. Rebbi Yehudah disagrees.
7. According to the Rabanan, the Gid ha'Nasheh is a "Biryah," a complete entity. Therefore, one is Chayav for eating an entire Gid ha'Nasheh even if it is less than the size of an olive. According to Rebbi Yehudah, one is Chayav only if he eats at least the size of an olive.
8. One is Chayav for eating a piece of the Gid ha'Nasheh at least the size of an olive, even if the Gid ha'Nasheh is much larger than an olive.
9. Only the Gid ha'Nasheh of an animal which has spoon-shaped flesh around the thighbone is forbidden, but not the Gid ha'Nasheh of a bird which does not have spoon-shaped flesh.
10. However, if the Gid ha'Nasheh was roasted with the thigh, only the outer layer of the meat is prohibited. After it is peeled off, the remaining meat may be eaten.
11. It is the nature of Chelev to penetrate completely anything with which it is roasted. Therefore, the entire goat is forbidden; it is not sufficient to simply peel off the outer layer.
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