The author - may God have mercy on him - mentioned in this book a large number of major sins, relying on the words of God - may God be glorified and exalted - and the hadiths of the Messenger of God - may God bless him and grant him peace - he mentions the title of the section and then begins with the words of God - glory be to Him - then mentions one or more hadiths in The inference that this action is significant and may mention some of the sayings of the salaf in that.