- Ben Aryeh on Mishneh Torah, Defilement by Leprosy
- Ben Aryeh on Mishneh Torah, Defilement by a Corpse
- Ben Aryeh on Mishneh Torah, Defilement of Foods
- Ben Aryeh on Mishneh Torah, Immersion Pools
- Ben Aryeh on Mishneh Torah, Other Sources of Defilement
- Ben Aryeh on Mishneh Torah, Red Heifer
- Ben Aryeh on Mishneh Torah, Those Who Defile Bed or Seat
- Ben Aryeh on Mishneh Torah, Vessels