Abu Hurayrah (may Allah be pleased with him) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) said: "Everyone of my Ummah will enter Paradise except those who refuse." They said: "And who would refuse, O Messenger of Allah?" He said: "He who obeys me will enter Paradise, and who disobeys me has refused."
The Prophet (may Allah's peace and blessings be upon him) informed that all his Ummah will enter Paradise except those who refuse! Thereupon, the Companions (may Allah be pleased with them) said: And who would refuse, O Messenger of Allah?! In reply to them, he explained that he who obeys and follows the Messenger (may Allah's peace and blessings be upon him) will enter Paradise. In contrast, he who disobeys and does not comply with the Shariah has refused to enter Paradise on account of his bad deeds.