Maimonides states that anyone who does not accept the seven laws is to be executed, as God compelled the world to follow these laws. However, for the other prohibitions such as the grafting of trees and bestiality he holds that the sons of Noah are not to be executed. Maimonides adds a universalism lacking from earlier Jewish sources. The Talmud differs from Maimonides in that it considers the seven laws enforceable by Jewish authorities on non-Jews living within a Jewish nation. Nahmanides disagrees with Maimonides' reasoning. He limits the obligation of enforcing the seven laws to non-Jewish authorities, thus taking the matter out of Jewish hands. The Tosafot seems to agree with Nahmanides reasoning. According to some opinions, punishment is the same whether the individual transgresses with knowledge of the law or is ignorant of the law.