From: Rabbi Moshe Sofer
To: Unknown recipient
The Chasam Sofer responds to a broad scholarly correspondence from R. Ephraim Zalman Margolios touching on several topics: a misattribution in the Kesef Mishneh regarding the Smag's challenge, the sanctification of the Temple site by Adam and Noach, the status of Canaanite asheirah trees via sfek sfeika and kavua, the identification of Har HaMoriah with Har Sinai, and the distinction between ordinary korbanos and the Paschal lamb in Egypt regarding previously worshipped animals. No single practical ruling is issued; the letter consists of analytical insights and scholarly clarifications on each point.
Source: Shu"t Chasam Sofer YD §235