Laws of Rechilus / 6: 8-9 (106)

8. It is forbidden to accept rechilus even from someone who speaks it seemingly innocently.

9. One who hears rechilus and there are ‘recognizable signs’ that prove that the information is in fact true, it is permitted do believe it under the following conditions: A. There is no way to judge him favorably. B. The sign is definite and obvious. C. He saw the recognizable signs firsthand. D. It will be beneficial to him in the future for if not he is forbidden to listen in the first place]. D. He can only believe it but not pass it on to others, and not cause him harm.