Sayyed Hassan Nasrallah made the remarks in a televised address to a ceremony commemorating late cleric Sheikh Abdul Naser al-Jabari on Tuesday.
He warned of the threat of Takfirism and extremism, saying Western intelligence apparatus tried to create rifts among Muslims in the wake of the Islamic awakening.
Nasrallah stated that Takfiri groups have faced the Islamic Ummah with the worst threats, adding, “We must behave responsibly and isolate those who spread sedition.”
The Hezbollah chief stressed that all media outlets must take steps to counter those channels which seek to stoke sedition among Muslims.
In order to help spread sedition, Nasrallah added, there are some parties legitimizing the murder of innocent people, while “closing the doors to television channels of Resistance.”
He called for fighting sedition with the ideology of unity.