Aisha, wife of the Prophet, reported: The Messenger of Allah, peace be upon him, said, “Be moderate in worship, draw near to Allah, and give glad tidings, for indeed, none of you will enter Paradise because of his deeds alone.” They said, “Not even you, O Messenger of Allah?” He said, “Not even me unless Allah grants me mercy from Himself; and know that the most beloved deed to Allah is that which is done regularly even if it is small.”
[Sahih Muslim, Book 39, Number 6770]
Islam - Key To The Treasures Of Jannah 