Al-Kāfi - Volume 2 > Balanced and Continuous Good Deeds
Hadith #1

1ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ حَمَّادٍ عَنِ الْحَلَبِيِّ قَالَ قَالَ أَبُو عَبْدِ الله (عَلَيهِ السَّلام) إِذَا كَانَ الرَّجُلُ عَلَى عَمَلٍ فَلْيَدُمْ عَلَيْهِ سَنَةً ثُمَّ يَتَحَوَّلُ عَنْهُ إِنْ شَاءَ إِلَى غَيْرِهِ وَذَلِكَ أَنَّ لَيْلَةَ الْقَدْرِ يَكُونُ فِيهَا فِي عَامِهِ ذَلِكَ مَا شَاءَ الله أَنْ يَكُونَ.

1. Ali ibn Ibrahim has narrated from his father from ibn abu ‘Umayr from Hammad from al-Halabi who has said the following: “Abu ‘Abd Allah (a.s.) has said, ‘If a man does a good deed, he should continue for a year before ending, if he may so wish, to perform another good deed. This is because the night of destiny comes in his year in which things that Allah wills come into being.’”