Quran. The latter is considered as the basis and reference of Islam as well as the source of the religious laws, and the main reference for those who seek the truth.
Peace is an essential value in the Quran. It is a necessity that a human being has sought since time immemorial. Since the Stone Age a human being sought peace by digging caves so that he would protect himself from the enemy. Then, he started building strongholds and citadels, as well as building high walls around the cities he had established, then people started to establish states and having armies to protect their own people and organize their life. Throughout all phases of the nations, human beings kept developing tools to protect themselves while seeking peace and security.
He first made stone tools, then metallic ones, until he reached the most sophisticated weapons. All along people's intention was to protect themselves along with their family, property and wealth.