Is it permissible to eat chicken that has consumed filth?

Yesterday I happened to come across a video which states about eating Desi Chicken and to keep it under personal observation for two or three days before slaughtering it as it eats what ever it finds including insects so it should be kept under observation and clean diet should be provided so that toxins are removed from meat as you eat. So I want to confirm about the authenticity of particular Hadith if any. I had done research but found nothing. Thanks in advance.