Hilchos Rechilus, chapter 2 , section 1
One may not speak rechilus even before a single person and how much more not before many.
בס"ד
The Chofetz Chaim
Rav Yisroel Meir Hakohen of Radin zt"l known as the Chofetz Chaim, was one of the most famous rabbis before the Holocaust.Read more »