The five major sins

5-16 Muhammad ibn al-Hassan ibn Ahmad ibn al-Walid - may God be pleased with him - narrated that Muhammad ibn al-Hassan al-Saffar quoted Ayoob ibn Nooh and Ibrahim ibn Hashim, on the authority of Muhammad ibn Abi Umayr, on the authority of some companions, on the authority of Aba Abdullah as-Sadiq (MGB) that he had seen the following in Ali’s (MGB) Book, “There are five major sins: associating others as partners with the Honorable the Exalted God; damnation of parents; usury after having clear proof of its forbiddance ; escaping from a holy war and emigration from an Islamic environment.”