They are trying to divert Muslims' attention from the main enemy. We - whether Shia and Sunni Muslims or anyone who is committed to Islam and who believes in the authority of the Holy Quran - should know that America and American, arrogant and Zionist policies are the enemy of Islam, Islamic awareness and the rule of Islam. The effort that they are making today is the continuation of the effort that they have been making for 35 years. It is 35 years now that they have been making all sorts of efforts. However, by God's permission and grace, they were defeated in all the efforts that they made against the Islamic Republic. By Allah's favor, they will definitely be defeated in this one as well.
What the responsibility of Muslims - whether Shia or Sunni Muslims - is, is that they should not help the enemy by provoking the feelings of one another. Shia should know that if there is a fight between Shia and Sunni and if feelings are provoked, it is the common and the main enemy who will benefit from this. Therefore, it should not let this happen. The same is true of Sunni. The two sides should be careful. They should not provoke each other's feelings, they should not insult each other's holy beliefs and they should not fuel the fire of discord between Muslim tribes and groups - particularly between Shia and Sunni - because this is what the enemies of Islam want. Everyone should pay attention to this.
If someone does something to provoke the feelings of the other side and to create enmity, they should certainly know that they are helping America, vile England and Zionism. They should know that they are helping those people who create DAESH, al-Qaida and the like and who create the takfiri orientation in order to create discord between Shia and Sunni. Today, Islamic unity, Islamic brotherhood and Islamic solidarity is one of the most necessary and urgent responsibilities for all Islamic societies. All of us should be committed to this responsibility.
Of course, the religious, wise and insightful Muslims who live in the Islamic Republic are familiar with their responsibilities. I hope that they show commitment to such responsibilities on this matter and all other matters.
Ayatollah Khamenei Oct 13, 2014