1)
What is the meaning of "mi'Bayis Saviv"?
1.
Rashi: It means that the Kohen must remove the bricks 'from the inside and scrape away the cement surrounding them'. 1
1
Sifra: To preclude a. the plaster on the outside and the plaster (and the layer of bricks) on the outside, and b. the bricks and plaster that are further away from the stricken ones.
2)
Why does the Torah see fit to insert both "es he'Afar"and "asher Hiktzu"?
1.
Sifra: "es he'Afar", to preclude pebbles that the owner removed together with the stones and plaster; "asher Hiktzu", to preclude plaster that fell down by itself.
