Narrated Abu Salih:
"I asked 'Aishah and Umm Salamah about which deed did the Messenger of Allah (ﷺ) like to do most. They said: 'Whatever he could do regularly, even if it was little.'"
وَقَدْ رُوِيَ عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ كَانَ أَحَبُّ الْعَمَلِ إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم مَا دِيمَ عَلَيْهِ . حَدَّثَنَا بِذَلِكَ هَارُونُ بْنُ إِسْحَاقَ الْهَمْدَانِيُّ حَدَّثَنَا عَبْدَةُ عَنْ هِشَامِ بْنِ عُرْوَةَ عَنْ أَبِيهِ عَنْ عَائِشَةَ عَنِ النَّبِيِّ صلى الله عليه وسلم نَحْوَهُ بِمَعْنَاهُ …
It has been reported from Hisham bin 'Urwah from his father, that 'Aishah said: "The most loved deed to the Messenger
of Allah (ﷺ) was what he could do regularly."
(Another chain) with similar meaning.