Tafsir of Az-Zukhruf 43:72

This is the Paradise, which you have been made to inherit because of your deeds that you used to do. means, the righteous deeds which were the cause of your being included in the mercy of Allah. For no one will be admitted to Paradise by virtue of their deeds alone; that will be by the mercy and grace of Allah. But the varying ranks and degrees of Paradise will be attained according to one's righteous deeds