In The Name of Allah, The Most Merciful, The Bestower of Mercy.

Imam Ibn al-Qayyim, may Allah have mercy upon him, said:

The Fitna (instigated) by a Mubtadi undermines the foundation of the religion, while the Fitna of a sinner pertains to forbidden desires. Unlike a sinner, the Mubtadi obstructs people’s path to the straight path, hinders them from it, invalidates the message delivered by the Messenger, and obstructs (access) to rewards in the Afterlife. Conversely, a sinner’s journey (towards attaining rewards) is delayed by his sins.

An Excerpt from Ad-Daa’u Wad- Dawaa. page 206