Date: 8 Adar Sheni 5581
From: Rabbi Moshe Sofer
To: Unknown recipient
The Chasam Sofer rules that no money may be extracted from the bride's father — neither for the husband nor for the deceased wife's daughters — because an umdena (implied condition) establishes that the pledge was conditioned on the daughter being alive to benefit. He rejects contrary views of the Taz and Chacham Tzvi, affirming the ruling of Rabbeinu Tam as codified in Even HaEzer 52.
Source: Shu"t Chasam Sofer CM §7