Vol 28.24 - Matot 1

Summary

(5745) Debate in viewpoint of Rambam, in the law of a minor who is twelve years and one day old who made a vow, that we examine him (to see if he has matured), that "even at the end of the (twelfth) year he requires examination and "We do not say: "Since they were knowledgeable at the beginning of the year, they no longer have to be questioned. Instead, we question them throughout the entire year" ( Hil Nedarim 11:2);

Two viewpoints in the "age limit" of vows - twelve years and one day old or thirteen years and one day old who does not
manifest signs of physical maturity (two hairs)"

Translation