Nedarim 65: Was It a Mitzvah for Moshe to Redeem the Jewish People From Egypt? The Lomdus of the Rivash, Shach & Hafla'ah
Shoneh Halachos Siman 10 Seif 23-27: The Requirement of the Majority of an Open Slit to Constitute a Corner
Nedarim 64b: If Moshe Got Permission Why Did He Need to Matir His Neder? The Lomdus of Nemukei Yosef & Maharal
