1. It is forbidden to speak rechilus even when the information is true, and even when said in the presence of the subject. When said in the presence of the subject, the prohibition is greater as he stirs even greater hatred in the heart of the listener, as he truly believes that what is said is true, and this leads to several additional prohibitions.
ל׳ בניסן ה׳תש״פ
Every moment that prerson restrain him mouth he acquiting to the Hidden Light, that there is no Mal'ach and creation to be able Imagine.(Hagra letter) 1