Date: 4 Sivan 5580
From: Rabbi Moshe Sofer
To: Unknown recipient
The responsum addresses the case of a woman married to a Kohen who gave birth and claims she had illicit relations before marriage, which her husband denies, and whether she is permitted to remain with him, analyzing the sugya of Yevamot regarding betrothed couples.
Source: Shu"t Chasam Sofer Collected §101