Abu Dawud Book 30, Hadith Number 4250.
Chapter : Prohibition of running to commotion fitnah.
Narated By Al-Miqdad ibn al-Aswad : I swear by Allah, I heard the Apostle of Allah (PBUH) say: The happy man is he who avoids dissensions: happy is the man who avoids dissensions; happy is the man who avoids dissensions: but how fine is the man who is afflicted and shows endurance.