Narrated Ibn ‘Abbas reported God’s messenger as saying, “The people most hateful to God are of three classes:
he who is heretical in the sacred territory, he who wants to introduce into Islam the sunna of the pre-Islamic period, and he who unjustly demands the death of a Muslim to shed his blood.”
Narrated Jabir reported God’s messenger as saying, “To proceed:
The best discourse is God’s Book, the best guidance is that given by Muhammad, and the worst things are those which are novelties. Every innovation is error.”
Abu Huraira reported God's messenger as saying, “All my people will enter paradise except those who refuse.” On being asked who refused, he replied, “He who obeys me will enter paradise, and he who disobeys me has refused.”