Yehoshua asks:
The Gemorah says in Taanis 29a that when Adar begins, we are "Marbin b'Simchah". What does this mean exactly? What should one do to "marbin" in Simcha? What's an example?
Yehoshua, Yerushalayim, Eretz Yisrael
The Kollel replies:
Dear Yehoshua,
I once asked this question to Rav Moshe Sternbuch and he told me that he didn't think that this Klal had any Halachic ramifications. I have heard from others that one manifestation of this Klal is that if one is going to have a court case with a non-Jew he should try to arrange it for the month of Adar in the same way that he should avoid such a case during Av, but I have no found no Mekor for this idea.
b'Yedidus,
Yonasan Sigler
This is not a Psak Halachah