"Fight those who believe not in Allah or the Last Day, nor hold that forbidden which hath been forbidden by Allah and His Messenger, nor acknowledge the religion of Truth, (even if they are) of the People of the Book, until they pay the jizya with willing submission, and feel themselves subdued." - Quran 9:29 (read more)

"Narrated Anas: The climate of Medina did not suit some people, so the Prophet ordered them to follow his shepherd, i.e. his camels, and drink their milk and urine (as a medicine). So they followed the shepherd that is the camels and drank their milk and urine till their bodies became healthy. Then they killed the shepherd and drove away the camels. When the news reached the Prophet he sent some people in their pursuit...." - Sahih Bukhari 1:5:268 (read more)

"Muslims are not allowed to honor the people of Dhimmah or elevate them above Muslims, for they are miserable, disgraced and humiliated...This is why the Leader of the faithful `Umar bin Al-Khattab, may Allah be pleased with him, demanded his well-known conditions be met by the Christians, these conditions that ensured their continued humiliation, degradation and disgrace." - Ibn Kathir