Sahih Muslim Book 39, Hadith Number 6764.
Chapter : None would attain salvation because of his deeds but it is through Lord’s Mercy (that he would attain that).
Abu Huraira reported Allah’s Messenger (may peace be upon him) as saying: None amongst you can get. into Paradise by virtue of his deeds alone. They said: Allah’s Messenger, not even you? Thereupon he said: Not even I, but that Allah should wrap me in His Grace and Mercy.