SHAFAQNA – It is narrated from Imam Sadeq (AS) who said: One of the biggest cases/examples of sorcery is gossiping; because by gossiping, friends can be separated, united people become enemies of each other; blood will be spilt due to gossiping, houses will be destroyed, and the veils/curtains will be removed. Gossiper is the worst person to walk on the earth [1].
[1] Beharul Anwaar, Vol. 63, Page 21, Hadith 14.