Hilchos Lashon Hara, chapter 2, section 6
One may only speak in that same town if one heard before three people, but not in another town.
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 »