Musnad Ahmad 1012:102

Abu al-Yaman narrated to us, Ibn 'Ayyash narrated to us, from 'Aqil ibn Mudrik al-Sulami, from Luqman ibn 'Amir, from Abu Rashid al-Hubrani, from 'Ubadah ibn al-Samit, that the Prophet (peace and blessings of Allah be upon him) said: "Whoever worships Allah, not associating anything with Him, and establishes the prayer, and gives the zakat, and hears and obeys, then Allah will cause him to enter through whichever of the gates of Paradise he wishes, and it has eight gates. And whoever worships Allah, not associating anything with Him, and establishes the prayer, and gives the zakat, and hears and disobeys, then Allah is in the matter of him at His choice; if He wills, He will have mercy on him, and if He wills, He will punish him."