From Sahih Muslim (Hadith 7117):
Abu Huraira reported Allah's Messenger (ﷺ) as saying:Observe moderation in deeds (and if it is not possible, try to be near moderation) and understand that none amongst you can attain salvation because 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 Mercy and Grace
Reference: Muslim 7117