אין קרבן ציבור חלוק

“A Korban Tzibur should not be eaten in a way that shows division within the congregation.”

Rashi: Since division is shameful, it is forbidden to eat the Korban Pesach in a way that makes division obvious.

Rav Yitchok Zilberstein Shlit`a : Therefore one may convene a Bais Din on Shabbos, in order to annul a vow that is causing an obvious division within a congregation.