Rabbi Yitzchok Genack

Kollel Rosh Chaburah

Nida 4 Size of gris

Nida 5 Stain on colored garments

Nida 6 Stain on object that is not mekabel tumah

Nida 1 Chumra of Reb Zeira

Nida 2 Hargashos

Nida 3 assuming stain from lice

Shabbos 137 - Halachos of Milah

Shabbos 135 - When is Milah not done on Shabbos

Shabbos 134 - When does one need hataphas dam bris

Shabbos 133 - Mitzitza b'peh

Shabbos 132 - Responsibility of father to give bris

Shabbos 131 - Carrying milah knife without eiruv

Shabbos 130 - Milah on Shabbos

Hilchos Muktzeh 13 - Indirect performance of melachah (Shabbos 47)

Hilchos Shabbos 12 - What constitutes Muktzeh? (Shabbos 46)

Hilchos Muktzeh 11 - What defines a bosis to muktzeh (Shabbos 44)

Hilchos Muktzeh 10 - The prohibition of creating muktzeh (Shabbos 43)

Hilchos Muktzeh 9 - Muktzeh that was picked up accidentally (Shabbos 42)

Bishul #10 (Shabbos 42) - Cooking in Keli Sheni

Hilchos Muktzeh 8 - Cleaning stains on Shabbos (Shabbos 143)