A'isha, the wife of Allah's Messenger (ﷺ), reported that Allah's Messenger (ﷺ) used to say:

Observe moderation (in doing deeds), and if you fail to observe it perfectly, try to do as much as you can do (to live up to this ideal of moderation) and be happy for none would be able to get into Paradise because of his deeds alone. They (the Companions of the Prophet) said: Allah's Messenger (ﷺ) , not even you? Thereupon he said: Not even I, but that Allah wraps me in His Mercy, and bear this in mind that the deed loved most by Allah is one which is done constantly even though it is small.

وَحَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، أَخْبَرَنَا عَبْدُ الْعَزِيزِ بْنُ مُحَمَّدٍ، أَخْبَرَنَا مُوسَى بْنُ، عُقْبَةَ ح وَحَدَّثَنِي مُحَمَّدُ بْنُ حَاتِمٍ، - وَاللَّفْظُ لَهُ - حَدَّثَنَا بَهْزٌ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا مُوسَى، بْنُ عُقْبَةَ قَالَ سَمِعْتُ أَبَا سَلَمَةَ بْنَ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ، يُحَدِّثُ عَنْ عَائِشَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم أَنَّهَا كَانَتْ تَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ سَدِّدُوا وَقَارِبُوا وَأَبْشِرُوا فَإِنَّهُ لَنْ يُدْخِلَ الْجَنَّةَ أَحَدًا عَمَلُهُ ‏"‏ ‏.‏ قَالُوا وَلاَ أَنْتَ يَا رَسُولَ اللَّهِ قَالَ ‏"‏ وَلاَ أَنَا إِلاَّ أَنْ يَتَغَمَّدَنِيَ اللَّهُ مِنْهُ بِرَحْمَةٍ وَاعْلَمُوا أَنَّ أَحَبَّ الْعَمَلِ إِلَى اللَّهِ أَدْوَمُهُ وَإِنْ قَلَّ ‏"‏ ‏.‏