Rif Pesachim 4b {Pesachim 8a continues ... 10b}

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4b

{Pesachim 8a continues}
and it states {Mishlei 20:27}:

כז נֵר ה, נִשְׁמַת אָדָם; חֹפֵשׂ, כָּל-חַדְרֵי-בָטֶן.

27 The spirit of man is the lamp of the LORD, searching all the inward parts.

And an exedra {which only has three walls} which has a lot of light, they may search it even by the light of the sun.

"Any place where they do not bring in chametz does not require searching...":
This that Bet Hillel say, the two outer upper rows, Rav and Shmuel argue in its explanation. And the halacha is like Shmuel who said it was the top row and the row one in from it, such that both of them are top rows.)

The Sages learnt {in a brayta}: The topmost and netheermost holes of a house, the roof of the verandah {= a balcony with a sloping roof}, {our gemara: and the roof of a turret,} a cow's stable, chicken-coops, a shed for straw, and store-houses of wine and oil do not require searching.

But they learnt {in a brayta}: Store-houses of wine require searching?!

There {where they require searching} is where he draws from them {for his immediate supplies}.

(And a loaf in the rafters, nullification is insufficient, but rather he requires a ladder to bring it down, lest it fall {during Pesach} and he come to eat it.)

Rav Chisda said: A fish pantry does not require searching.
But they learnt {in a brayta} that it requires searching!

This is no question. Here is {a pantry} for large {fish, such that more need not be brought to the table to a meal}, and here is for small.

Rabba bar Rav Huna said: Salt sheds and wax sheds require searching.
Rav Papa said: Storehouses for fuel and storehouses for dates require searching.

They learnt {in a brayta}: A hole {in the wall} between a man and his fellow, this one searches as far as his hand can reach, and this one searches as far as his hand can reach, and the remainder, he nullifes in his heart.

{Pesachim 8b}
They learnt {in a brayta}: A hole {in the wall} between a Jew and a gentile, this one {=the Jew} searches as far as his hand can reach and the remainder he nullifies in his heart. Plimo says: He does not search at all because of the danger, lest the gentile say, "he is doing witchcraft against me."

Rava said: A courtyard does not require searching because ravens are found there.

{Pesachim 9a}
Mishna:
They need not fear that a mole dragged from the house to house and from place to place, for if so from courtyard to courtyard and from town to town - there is no end to the matter.
{Pesachim 10b}
Rabbi Yehuda says: they search on the evening of the fourteenth, on the fourteenth in the morning or at the time of the removal.
The Sages say: If he did not search on the evening of the fourteenth, he searches on the fourteenth. If he did not search on the fourteenth, he searches on the Moed. If he did not search during the Moed, he searches after the Moed. And what he leaves, he puts in a guarded place so that he will not have to search for it.

{Rif:} To explain on the Moed and after the Moed -- during Pesach and after Pesach.

Gemara:
"And what he leaves, he puts in a guarded place...":
For example, he put down ten and found nine. But if he does not know how many he put down, even though he did not conceal it {in a guarded place}