(18) باب الْقَصْدِ وَالْمُدَاوَمَةِ عَلَى الْعَمَلِ
Narrated `Aisha:
The most beloved action to Allah's Messenger (ﷺ) was that whose doer did it continuously and regularly.
Reference: Sahih al-Bukhari 6462
In-book reference: Book 81, Hadith 51
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 76, Hadith 469