Bava Batra 51b - 52a A Suspicion is not an Assumption - אין מקבלין פקדונות מן הנשים

Matmonim: Daf Yomi by Rabbi David Lapin - A podcast by Rabbi David Lapin

Suspicion can require us to desist from certain actions. If the issue is more than a suspicion, rather it is an halachically legitimate assumption, we need to act on that assumption. Source Sheet