Sa'd bin Ibrahim narrates from Abu Salamah, and he from Sayyidah Aishah (may Allah be pleased with her), that the Prophet (peace and blessings be upon him) was asked: Which deeds are most beloved to Allah? He (peace and blessings be upon him) said: "Those done consistently, even if they are few."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4566