SHAFAQNA – It is narrated from Imam Sadeq (AS) who said: If a person says words against a believer and the intention is to portray a bad image of the believer and destroy his/her social reputation, and disgrace him/her, Allah (SWT) will remove that person from the axis of God’s friendship, and will place that person under the guardianship of Satan but even Satan will not accept that person [1].
[1] Alkafi, Vol. 2, page 358.