The Prophet ( may the peace and blessings of Allah be upon him ) used to remind his companions of the norms of Allah. As well he used to tell them about the major and minor signs of the last day, and warns them of the seditions: be them small and large, hidden or appearant. Accordingly they gathered a great deal of knowledge, they lived between fear and hope, so they won the benefits of the world and the Hereafter, because they learned how to fear Allah, and how to hope in his mercy.