In the previous part, we discussed Imam Ali’s (a) view about the significance of “unity” in continuing the mission of the holy Prophet (s). We saw that criticizing disunited nations, Imam Ali (a) mentions that division leads to destruction of dignity and honor while unity leads to the descent of divine blessings. Referring to Imam’s words in Nahj ul-Balaghah, we argued that he has been the greatest herald of unity of Islamic community and he constantly made efforts to achieve and preserve it. We studied Imam Ali’s theoretical view on unity and its fruits and then we referred to the factors which create unity in Islamic community. In this part, we will study disunity and its roots to see how it can be avoided.