Unity Is Only Achieved Through Tawheed, By Ibn Taymiyyah
Ibn Taymiyyah said:
“The Polytheists have many dissensions and sects in their faith. As a matter of fact Polytheism and innovation always cause division and dissension.
Each polytheistic tribe of Arabia had its own god which was loathed by other tribes. Some of these followed different laws. For example, the Madinan’s polytheists invoked Manaat and disliked to perform tawaaf between Safa and Marwah. The Quraan later commanded them to do so.
Those falling prey to polytheism cannot have unity. This is evident from the conduct of those who take the graves and places associated with the Messengers and the pious as mosques. Each group of theirs visits a place which is not sacred for the other group.”
[Mukhtasar Iqtidhaa’ Al-Siraat Al-Mustaqeem, p. 182]