A few quotes from the Rabbi on 'Redemption of Israel'
in which he teaches that a vow to live in the Land of Israel is not to be annulled, except under duress
Concerning a person who vows to reside in the Land of Israel in our day... A vow is considered a commandment, and one is not permitted to annul it except under duress. This rule also applies to someone who vows to visit the Land of Israel, may it be rebuilt and established speedily in our day, Amen: The vow is considered as a commandment. If someone who vows to make a pilgrimage to the tombs of righteous people, this is considered a vow, and requires annulment.
Likutei Khemed, Part Two, Halakhot for Vows and Oaths, Halakha 6, p. 232, Hapoel Hamizrachi Press, 1977
