Sahih Muslim , Book 6, Hadith 258 (In-Book) ⓘ
'A'isha reported Allah's Messenger as saying: The acts most pleasing to Allah are those which are done continuously, even if they are small. and when 'A'isha did any act she did it continuously.
وَحَدَّثَنَا ابْنُ نُمَيْرٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا سَعْدُ بْنُ سَعِيدٍ، أَخْبَرَنِي الْقَاسِمُ بْنُ مُحَمَّدٍ، عَنْ عَائِشَةَ، قَالَتْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " أَحَبُّ الأَعْمَالِ إِلَى اللَّهِ تَعَالَى أَدْوَمُهَا وَإِنْ قَلَّ " . قَالَ وَكَانَتْ عَائِشَةُ إِذَا عَمِلَتِ الْعَمَلَ لَزِمَتْهُ .
also referenced under: Hadith 783 (Reference) & Book 4, Hadith 1713 (USC-MSA)