Date: 23 Av 5592
From: Rabbi Moshe Sofer
To: Rabbi Shimon Segal
The responsum addresses the case of a woman suspected of adultery with her son-in-law, and the ruling by a previous rabbi that they are disqualified from taking an oath, discussing the halachic basis for such a disqualification.
Source: Shu"t Chasam Sofer Collected §48