From: Rabbi Moshe Sofer
To: Rabbi Avraham Binga Segal
A theoretical exchange addressing three Talmudic difficulties in the Ran's commentary on Shevuos: the Chasam Sofer defends his reading that mashveh nafsheih rasha applies in shevuas ha'eidus only in the Temple era when a korban validates the self-incrimination; he struggles to reconcile the Ran and Ramban on the mashkon oath obligation, concluding the Ran requires further study; and he challenges R. Binga to demonstrate where R. Meir follows a minority against a chazakah, noting the inherent weakness of chezkas taharah.
Source: Shu"t Chasam Sofer CM §34