Pesachim Daf 65 - Are we obligated to do a Mitzvah if even after we did it we're not sure if we fufilled it?

Dovid Lichtenstein is the founder and CEO of the Lightstone Group, one of the largest privately-held real estate companies in the United States.

He has authored several volumes of Mishne Achronah on the Mishne Berura, in addition to several Headlines Books on contemporary Halachic issues based on his weekly podcast @ halachaheadlines.com.

Additionall...