English: “And Hashem said to Moshe in Midian” — it was taught: One who is forbidden by vow from benefit of his fellow may be released only in his presence\ldots “In Midian you vowed; go and have your vow released in Midian.”
On the daf / in context: See the cited source for the full section.
Type of Learning
Custom
What Is Learned
Chazal derive that release from a vow must take place in the presence of the one to whom the vow was made.