Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Everyone of my Ummah will enter Paradise except those who refuse.” It was said: "Who does refuse, O Messenger of Allah?" He said: "He who obeyed me, shall enter Paradise, and who disobeyed me, indeed he has refused.''
Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Do not ask me unnecessarily about what I did not mention to you. Verily, what destroyed those who were before you was their asking too many questions and their disagreement with their Prophets. So, if I forbid you from something, then avoid it; and if I command you to do something, then do as much of it as you can."
Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Whoever obeys me has obeyed Allah, and whoever disobeys me has disobeyed Allah; and whoever obeys the leader has obeyed me, and whoever disobeys the leader has disobeyed me."
Abdullāh ibn Mas‘ūd (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Ruined are the extremists!." He said it thrice.
‘Abdullāh ibn ‘Abbās, Anas ibn Mālik, ‘Abdullāh ibn Az-Zubayr, and Abu Mūsa al-Ash‘ari (may Allah be pleased with them) reported that the Messenger of Allah (may Allah's peace and blessings be upon him) said: "If the son of Adam were to own a valley of gold, he would desire to have two valleys. Nothing can fill his mouth except dust, and Allah accepts the repentance of whoever repents."
Abu Sa‘īd al-Khudri reported that the Messenger of Allah (may Allah's peace and blessings be upon him) said: "Do not write down anything from me, and he who wrote down anything from me except the Qur'an, he should erase it. But, narrate from me, for there is nothing wrong in doing so. Whoever attributes any falsehood to me - Hammām said: I think he also said 'deliberately' - let him occupy his seat in Hellfire.”