Abu Dawud Book 8, Hadith Number 2635.
Chapter : Not known.
Narated By Anas ibn Malik : The Prophet (PBUH) said: I am commanded to fight with men till they testify that there is no god but Allah, and that Muhammad is His servant and His Apostle, face our qiblah (direction of prayer), eat what we slaughter, and pray like us. When they do that, their life and property are unlawful for us except what is due to them. They will have the same rights as the Muslims have, and have the same responsibilities as the Muslims have.