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.'" (FR)
English reference (FR): Vol. 5, Book 41, Hadith 2856 (FR)
Arabic reference (FR): Book 43, Hadith 3094 (FR)