Nahj al-Balāgha
Hadith 1852٢٧٨. وَقَالَ (عليه السلام): قَلِيلٌ تَدُومُ عَلَيْهِ أَرْجَى مِنْ كَثِيرٍ مَمْلُولٍ مِنْهُ.
278. Amīr al-mu’minīn, peace be upon him, said: A small action which is continued with regularity is more beneficial than a long one performed with disgust.