The Prophet ﷺ said, "The most beloved deeds to Allah are those done consistently, even if they are few."
حدثنا ابن نمير قال حدثنا سعد بن سعيد عن القاسم بن محمد
عن النبي ﷺ قال أحب الأعمال إلى الله عز وجل أدومها وإن قل
Its isnad is sahih. Saad bin Saeed is Ibn Amr Ansari, and he is trustworthy according to Ibn Saad and Ibn Hibban. Ibn Main graded him sahih, and his hadith is found in Muslim. The hadith has already appeared at 24822.